Retry job claims after a database error instead of waiting for a wake

A claim that failed with anything but sql.ErrNoRows parked the worker
on the wake channel, so a job queued across a restart (which has no
wake token) stayed queued until another enqueue or restart. The worker
now retries such a claim with backoff from 50ms doubling to 5s, reset
on any successful or empty claim, and stops promptly on shutdown. The
claim error is logged by category only.

The claim query is a Runner field so a test can inject one failing
claim; TestClaimErrorIsRetried drops the wake token and asserts the
queued job still runs.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -1,6 +1,13 @@
 # Runs on every push and pull request (no branch filter) so feature branches,
 # their pull requests, and dev/main are all checked. Runs directly on the
 # self-hosted act_runner; no container: key.
+#
+# The Makefile is the single build definition: CI runs `make test` and
+# `make build` so it fails whenever either target would, and the binary
+# carries the Makefile's -trimpath and version-stamped -ldflags (the
+# `make build` log shows the -X main.version=... value). `make sqlc-check`
+# fails when the committed internal/db code is stale against sqlc.yaml,
+# migrations/ and migrations/queries/.
 name: CI
 
 on: [push, pull_request]
@@ -16,45 +23,17 @@ jobs:
           go-version-file: go.mod
           cache: false
 
-      - name: gofmt
-        run: |
-          unformatted="$(gofmt -l .)"
-          if [ -n "$unformatted" ]; then
-            echo "gofmt needed:"
-            echo "$unformatted"
-            exit 1
-          fi
-
-      - name: go vet
-        run: go vet ./...
-
-      - name: go test
-        run: go test -race ./...
-
       - uses: actions/setup-node@v4
         with:
           node-version: "22"
 
-      - name: npm ci
-        working-directory: web
-        run: npm ci
+      - name: make test
+        run: make test
 
-      - name: npm run typecheck
-        working-directory: web
-        run: npm run typecheck
-
-      - name: npm test
-        working-directory: web
-        run: npm test
-
-      - name: npm run build
-        working-directory: web
-        run: npm run build
-
-      # Embed the real PWA, as `make embed` does, then build the static binary.
-      - name: go build (embedded PWA)
+      - name: make sqlc-check
         run: |
-          rm -rf internal/frontend/dist
-          mkdir -p internal/frontend/dist
-          cp -R web/dist/. internal/frontend/dist/
-          CGO_ENABLED=0 go build -o bin/mealquest ./cmd/server
+          make sqlc-install
+          make sqlc-check SQLC="$(go env GOPATH)/bin/sqlc"
+
+      - name: make build
+        run: make build

Makefile

@@ -5,6 +5,9 @@
 #   make test    gofmt check, go vet, go test -race, npm typecheck and test.
 #   make build   Build the PWA, embed it, build the static binary bin/mealquest.
 #   make docker  Build the container image from ./Dockerfile.
+#   make sqlc    Regenerate internal/db from sqlc.yaml with the pinned sqlc.
+#   make sqlc-check    Regenerate; fail if internal/db differs from the commit.
+#   make sqlc-install  Install the pinned sqlc into the Go bin directory.
 
 FRONTEND_DIST := internal/frontend/dist
 # Dirty means a tracked change outside the generated embed output, which
@@ -14,7 +17,13 @@ VERSION ?= $(shell git describe --tags --always 2>/dev/null || echo dev)$(if $(G
 IMAGE ?= mealquest:$(VERSION)
 LDFLAGS := -s -w -X main.version=$(VERSION)
 
-.PHONY: dev test go-test web-test build web embed check-embed-clean docker
+# sqlc is a dev tool only, never a go.mod dependency. Generated code records
+# the version that wrote it, so every run must use exactly this one.
+SQLC_VERSION := v1.31.1
+SQLC ?= sqlc
+SQLC_OUT := internal/db
+
+.PHONY: dev test go-test web-test build web embed check-embed-clean docker sqlc sqlc-check sqlc-install
 
 # Run both servers; Ctrl-C (or either exiting) stops both. The binary is built
 # first and run directly because `go run` would orphan its child on kill.
@@ -58,3 +67,22 @@ check-embed-clean:
 
 docker:
 	docker build --build-arg VERSION=$(VERSION) -t $(IMAGE) .
+
+# sqlc $(SQLC_VERSION) needs Go 1.26 to build; GOTOOLCHAIN=auto lets go fetch
+# it for this install only, even where the environment pins the local Go.
+sqlc-install:
+	GOTOOLCHAIN=auto go install github.com/sqlc-dev/sqlc/cmd/sqlc@$(SQLC_VERSION)
+
+# Previously generated files are removed first so a dropped query file does
+# not leave its stale output behind; hand-written files are kept.
+sqlc:
+	@v="$$($(SQLC) version)"; \
+	if [ "$$v" != "$(SQLC_VERSION)" ]; then echo "sqlc $(SQLC_VERSION) required, $(SQLC) is $$v"; exit 1; fi
+	find $(SQLC_OUT) -maxdepth 1 -name '*.go' -exec grep -l -x '// Code generated by sqlc. DO NOT EDIT.' {} + | xargs -r rm --
+	$(SQLC) generate
+
+# Fails on any difference from the committed generated code, including new
+# or deleted files.
+sqlc-check: sqlc
+	@drift="$$(git status --porcelain --untracked-files=all -- $(SQLC_OUT))"; \
+	if [ -n "$$drift" ]; then echo "internal/db is stale; run make sqlc and commit:"; echo "$$drift"; git diff -- $(SQLC_OUT); exit 1; fi

README.md

@@ -30,14 +30,38 @@ export MEALQUEST_PUBLIC_URL=http://localhost:5173
 export MEALQUEST_DATA_DIR="$HOME/.mealquest-dev"
 export MEALQUEST_SHUTDOWN_TIMEOUT=10s
 export MEALQUEST_SECRET_KEY_FILE="$HOME/.mealquest-dev/secret_key"
+# Authentik OAuth2/OpenID provider for MealQuest (redirect URI:
+# $MEALQUEST_PUBLIC_URL/auth/callback). Save its client secret to the file.
+export MEALQUEST_OIDC_ISSUER=https://auth.example.com/application/o/mealquest/
+export MEALQUEST_OIDC_CLIENT_ID=mealquest
+export MEALQUEST_OIDC_CLIENT_SECRET_FILE="$HOME/.mealquest-dev/oidc_client_secret"
+export MEALQUEST_OIDC_ALLOWED_GROUPS=mealquest-admin
+# Optional: sessions end after MEALQUEST_SESSION_IDLE unused (default 720h)
+# and always MEALQUEST_SESSION_MAX after sign-in (default 4320h).
+# export MEALQUEST_SESSION_IDLE=720h
+# export MEALQUEST_SESSION_MAX=4320h
+# Optional: comma-separated IPs/CIDRs of reverse proxies whose
+# X-Forwarded-For/-Proto headers are honoured (production: Traefik). Unset
+# trusts no peer, which is right for local development.
+# export MEALQUEST_TRUSTED_PROXY=10.60.1.33
+export MEALQUEST_DEFAULT_TZ=America/New_York
 make dev
 ```
 
 `make dev` runs the Go server on `:8080` and the Vite dev server on `:5173`
 (which proxies `/api`, `/auth` and `/media` to `:8080`). Open
 http://localhost:5173. Configuration is environment-only and fails fast:
-every variable above is required, and secrets are read only from files named
-by `*_FILE` variables.
+every variable above is required except the commented-out session
+lifetimes (when set they must be positive, with MAX at least IDLE),
+trusted proxy list (every entry must be an IP or CIDR) and
+`MEALQUEST_DEFAULT_TZ`, and
+secrets are read only from files named by `*_FILE` variables. `MEALQUEST_PUBLIC_URL`, `MEALQUEST_OIDC_ISSUER` and the
+endpoints the issuer advertises must be `https://`; plain `http://` is
+accepted only for `localhost`, `127.0.0.1` and `[::1]`.
+`MEALQUEST_DEFAULT_TZ` is the IANA zone the household settings are created
+with on first boot: until those settings exist, boot fails unless it is a
+valid IANA zone. Later boots ignore it, set or not (change the zone in
+household settings instead).
 
 ## Common commands
 

cmd/server/boot_test.go

@@ -0,0 +1,370 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	"encoding/base64"
+	"errors"
+	"io/fs"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"testing/fstest"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/config"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/household"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/secretbox"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+// useBootMigrations swaps bootMigrations for the test and restores it after.
+// Tests that call it must not run in parallel.
+func useBootMigrations(t *testing.T, m fstest.MapFS) {
+	t.Helper()
+	saved := bootMigrations
+	bootMigrations = m
+	t.Cleanup(func() { bootMigrations = saved })
+}
+
+// loadConfig loads a configuration through config.Load whose secret key file
+// holds keyFile. Tests that call it must not run in parallel.
+func loadConfig(t *testing.T, keyFile string) config.Config {
+	t.Helper()
+	dir := t.TempDir()
+	keyPath := filepath.Join(dir, "secret_key")
+	if err := os.WriteFile(keyPath, []byte(keyFile), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	clientSecretPath := filepath.Join(dir, "oidc_client_secret")
+	if err := os.WriteFile(clientSecretPath, []byte("client-secret\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	t.Setenv(config.EnvHTTPAddr, "127.0.0.1:0")
+	t.Setenv(config.EnvPublicURL, "http://localhost")
+	t.Setenv(config.EnvDataDir, t.TempDir())
+	t.Setenv(config.EnvShutdownTimeout, "1s")
+	t.Setenv(config.EnvSecretKeyFile, keyPath)
+	t.Setenv(config.EnvOIDCIssuer, "https://auth.example.com/application/o/mealquest/")
+	t.Setenv(config.EnvOIDCClientID, "mealquest")
+	t.Setenv(config.EnvOIDCClientSecretFile, clientSecretPath)
+	t.Setenv(config.EnvOIDCAllowedGroups, "mealquest-admin")
+	// MEALQUEST_DEFAULT_TZ is left unset; t.Setenv restores any outer value.
+	t.Setenv(config.EnvDefaultTZ, "")
+	if err := os.Unsetenv(config.EnvDefaultTZ); err != nil {
+		t.Fatal(err)
+	}
+	cfg, err := config.Load()
+	if err != nil {
+		t.Fatal(err)
+	}
+	return cfg
+}
+
+// validKeyFile returns secret key file contents as written by the README:
+// base64 of 32 random bytes followed by a newline.
+func validKeyFile(t *testing.T) string {
+	t.Helper()
+	key := make([]byte, secretbox.KeySize)
+	if _, err := rand.Read(key); err != nil {
+		t.Fatal(err)
+	}
+	return base64.StdEncoding.EncodeToString(key) + "\n"
+}
+
+var brokenMigrations = fstest.MapFS{
+	"0000_good.sql":   {Data: []byte("CREATE TABLE good (id INTEGER PRIMARY KEY);")},
+	"0001_broken.sql": {Data: []byte("CREATE TABLE broken (id INTEGER PRIMARY KEY;")},
+}
+
+func TestOpenStoreMigrationFailureStopsBoot(t *testing.T) {
+	useBootMigrations(t, brokenMigrations)
+
+	db, err := openStore(context.Background(), t.TempDir())
+	if err == nil {
+		db.Close()
+		t.Fatal("openStore succeeded with a broken migration")
+	}
+	if db != nil {
+		t.Error("openStore returned a store alongside the error")
+	}
+	if !strings.Contains(err.Error(), "0001_broken.sql") {
+		t.Errorf("error does not name the broken migration: %v", err)
+	}
+}
+
+func TestOpenStoreAppliesEmbeddedMigrations(t *testing.T) {
+	ctx := context.Background()
+	db, err := openStore(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	var n int
+	if err := db.Reader.QueryRowContext(ctx, "SELECT count(*) FROM schema_migrations").Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	files, err := fs.Glob(migrations.FS, "*.sql")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if n != len(files) {
+		t.Errorf("schema_migrations has %d rows, want %d", n, len(files))
+	}
+}
+
+func TestRunMigrationFailureReturnsBeforeListening(t *testing.T) {
+	useBootMigrations(t, brokenMigrations)
+
+	var logs bytes.Buffer
+	cfg := loadConfig(t, validKeyFile(t))
+	errc := make(chan error, 1)
+	go func() { errc <- run(cfg, slog.New(slog.NewJSONHandler(&logs, nil))) }()
+
+	select {
+	case err := <-errc:
+		if err == nil || !strings.Contains(err.Error(), "0001_broken.sql") {
+			t.Fatalf("run error = %v, want the broken migration's error", err)
+		}
+	case <-time.After(10 * time.Second):
+		t.Fatal("run kept going after a migration failure")
+	}
+	if strings.Contains(logs.String(), `"listening"`) {
+		t.Errorf("run started listening despite the migration failure: %s", logs.String())
+	}
+}
+
+func TestOpenSecretBoxAcceptsReadmeKey(t *testing.T) {
+	cfg := loadConfig(t, validKeyFile(t))
+	box, err := openSecretBox(cfg.SecretKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+	token, err := box.Encrypt([]byte("x"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := box.Decrypt(token); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRunBadSecretKeyStopsBoot(t *testing.T) {
+	short := base64.StdEncoding.EncodeToString(make([]byte, 31))
+	tests := []struct {
+		name    string
+		keyFile string
+		want    error
+	}{
+		{"not base64", "this is not a base64 key!\n", secretbox.ErrKeyEncoding},
+		{"wrong length", short + "\n", secretbox.ErrKeyLength},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg := loadConfig(t, tt.keyFile)
+			var logs bytes.Buffer
+			errc := make(chan error, 1)
+			go func() { errc <- run(cfg, slog.New(slog.NewJSONHandler(&logs, nil))) }()
+
+			var err error
+			select {
+			case err = <-errc:
+			case <-time.After(10 * time.Second):
+				t.Fatal("run kept going with a bad secret key")
+			}
+			if !errors.Is(err, tt.want) {
+				t.Fatalf("run error = %v, want %v", err, tt.want)
+			}
+			if !strings.Contains(err.Error(), config.EnvSecretKeyFile) {
+				t.Errorf("error does not name %s: %v", config.EnvSecretKeyFile, err)
+			}
+			if key := strings.TrimSpace(tt.keyFile); strings.Contains(err.Error(), key) {
+				t.Errorf("error leaks the key: %v", err)
+			}
+			if strings.Contains(logs.String(), `"listening"`) {
+				t.Errorf("run started listening despite the bad key: %s", logs.String())
+			}
+			if _, statErr := os.Stat(filepath.Join(cfg.DataDir, store.FileName)); !errors.Is(statErr, fs.ErrNotExist) {
+				t.Errorf("run opened the database before rejecting the key (stat: %v)", statErr)
+			}
+		})
+	}
+}
+
+func TestLoadMissingSecretKeyFileStopsBoot(t *testing.T) {
+	loadConfig(t, validKeyFile(t)) // sets every other variable
+	t.Setenv(config.EnvSecretKeyFile, filepath.Join(t.TempDir(), "missing"))
+	_, err := config.Load()
+	var cfgErr *config.Error
+	if !errors.As(err, &cfgErr) || !strings.Contains(err.Error(), config.EnvSecretKeyFile) {
+		t.Fatalf("Load error = %v, want a config error naming %s", err, config.EnvSecretKeyFile)
+	}
+}
+
+func TestRunWithoutValidDefaultZoneOnFirstBootStops(t *testing.T) {
+	tests := []struct {
+		name      string
+		defaultTZ *string // nil leaves MEALQUEST_DEFAULT_TZ unset
+		want      error
+	}{
+		{"unset", nil, household.ErrNoDefaultZone},
+		{"not an IANA zone", ptr("Mars/Olympus_Mons"), household.ErrInvalidDefaultZone},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			loadConfig(t, validKeyFile(t))
+			if tt.defaultTZ != nil {
+				t.Setenv(config.EnvDefaultTZ, *tt.defaultTZ)
+			}
+			cfg, err := config.Load()
+			if err != nil {
+				t.Fatal(err)
+			}
+			var logs bytes.Buffer
+			errc := make(chan error, 1)
+			go func() { errc <- run(cfg, slog.New(slog.NewJSONHandler(&logs, nil))) }()
+
+			select {
+			case err = <-errc:
+			case <-time.After(10 * time.Second):
+				t.Fatal("run kept going with no household settings and no valid default zone")
+			}
+			if !errors.Is(err, tt.want) || !strings.Contains(err.Error(), config.EnvDefaultTZ) {
+				t.Fatalf("run error = %v, want %v naming %s", err, tt.want, config.EnvDefaultTZ)
+			}
+			if strings.Contains(logs.String(), `"listening"`) {
+				t.Errorf("run started listening without household settings: %s", logs.String())
+			}
+		})
+	}
+}
+
+// A reboot over existing household settings must not depend on
+// MEALQUEST_DEFAULT_TZ: config.Load accepts an invalid value and seeding
+// ignores it, keeping the stored zone.
+func TestRebootWithSettingsIgnoresInvalidDefaultZone(t *testing.T) {
+	ctx := context.Background()
+	cfg := loadConfig(t, validKeyFile(t))
+
+	db, err := openStore(ctx, cfg.DataDir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := seedSettings(ctx, db, "America/Denver"); err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	t.Setenv(config.EnvDefaultTZ, "Mars/Olympus_Mons")
+	cfg, err = config.Load()
+	if err != nil {
+		t.Fatalf("Load with an invalid %s and existing settings: %v", config.EnvDefaultTZ, err)
+	}
+	db, err = openStore(ctx, cfg.DataDir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := seedSettings(ctx, db, cfg.DefaultTZ); err != nil {
+		t.Fatalf("reboot with %s=%q: %v", config.EnvDefaultTZ, cfg.DefaultTZ, err)
+	}
+	got, err := household.NewSettingsService(db).Get(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.Timezone != "America/Denver" {
+		t.Errorf("timezone after reboot = %q, want America/Denver", got.Timezone)
+	}
+}
+
+func ptr[T any](v T) *T { return &v }
+
+func TestSeedSettingsAtBoot(t *testing.T) {
+	ctx := context.Background()
+	dir := t.TempDir()
+
+	// First boot seeds from the default zone.
+	db, err := openStore(ctx, dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := seedSettings(ctx, db, "America/Denver"); err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	// A later boot needs no default zone and keeps the stored one.
+	db, err = openStore(ctx, dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := seedSettings(ctx, db, ""); err != nil {
+		t.Fatalf("reboot without %s: %v", config.EnvDefaultTZ, err)
+	}
+	got, err := household.NewSettingsService(db).Get(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.Timezone != "America/Denver" {
+		t.Errorf("timezone after reboot = %q, want America/Denver", got.Timezone)
+	}
+}
+
+func TestSeedDefaultsAtBoot(t *testing.T) {
+	ctx := context.Background()
+	db, err := openStore(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := seedDefaults(ctx, db, "America/Denver"); err != nil {
+		t.Fatal(err)
+	}
+
+	if _, err := household.NewSettingsService(db).Get(ctx); err != nil {
+		t.Errorf("household settings: %v", err)
+	}
+	var provider string
+	if err := db.Reader.QueryRowContext(ctx, `SELECT provider FROM ai_settings`).Scan(&provider); err != nil {
+		t.Errorf("AI settings: %v", err)
+	} else if provider != household.SeedAIProvider {
+		t.Errorf("AI provider = %q, want %q", provider, household.SeedAIProvider)
+	}
+	var prefs int
+	if err := db.Reader.QueryRowContext(ctx, `SELECT count(*) FROM notification_prefs`).Scan(&prefs); err != nil {
+		t.Fatal(err)
+	}
+	if prefs != 5 {
+		t.Errorf("%d notification preferences, want 5", prefs)
+	}
+
+	// A second boot seeds nothing new and succeeds.
+	if err := seedDefaults(ctx, db, ""); err != nil {
+		t.Fatalf("reboot: %v", err)
+	}
+}

cmd/server/jobs_test.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"context"
+	"io"
+	"log/slog"
+	"testing"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/jobs"
+)
+
+// TestNewJobRunnerRunsNoop proves the runner run builds can execute a job:
+// a noop job enqueued before Start, as at boot, succeeds with its result.
+func TestNewJobRunnerRunsNoop(t *testing.T) {
+	ctx := context.Background()
+	db, err := openStore(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	runner, kinds, err := newJobRunner(db, slog.New(slog.NewTextHandler(io.Discard, nil)))
+	if err != nil {
+		t.Fatal(err)
+	}
+	id, err := kinds.builtins.Noop.Enqueue(ctx, jobs.NoopPayload{})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	jobsCtx, stopJobs := context.WithCancel(ctx)
+	if err := runner.Start(jobsCtx); err != nil {
+		stopJobs()
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		stopJobs()
+		runner.Wait()
+	})
+
+	deadline := time.Now().Add(5 * time.Second)
+	for {
+		job, err := runner.Get(ctx, id)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if job.Status == jobs.StatusSucceeded || job.Status == jobs.StatusFailed {
+			if job.Kind != jobs.KindNoop || job.Status != jobs.StatusSucceeded || string(job.Result) != `{"ok":true}` || job.Error != nil {
+				t.Fatalf("noop job = %+v (result %s), want succeeded with {\"ok\":true}", job, job.Result)
+			}
+			return
+		}
+		if time.Now().After(deadline) {
+			t.Fatalf("noop job never finished; last %+v", job)
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+}

cmd/server/main.go

@@ -5,6 +5,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io/fs"
 	"log/slog"
 	"net/http"
 	"os"
@@ -12,14 +13,24 @@ import (
 	"syscall"
 	"time"
 
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
 	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/config"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/forwarded"
 	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/frontend"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/household"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/jobs"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/secretbox"
 	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/server"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
 )
 
 // version is set at build time with -ldflags "-X main.version=<version>".
 var version = "dev"
 
+// jobWorkers is the number of background jobs run at once.
+const jobWorkers = 2
+
 func main() {
 	cfg, err := config.Load()
 	if err != nil {
@@ -27,7 +38,7 @@ func main() {
 		os.Exit(1)
 	}
 
-	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+	logger := slog.New(forwarded.LogHandler(slog.NewJSONHandler(os.Stdout, nil)))
 	if err := run(cfg, logger); err != nil {
 		logger.Error("server stopped", "error", err)
 		os.Exit(1)
@@ -38,10 +49,61 @@ func run(cfg config.Config, logger *slog.Logger) error {
 	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
 	defer stop()
 
-	router, err := server.NewRouter(logger, version, frontend.Assets())
+	if _, err := openSecretBox(cfg.SecretKey); err != nil {
+		return err
+	}
+
+	db, err := openStore(ctx, cfg.DataDir)
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err := db.Close(); err != nil {
+			logger.Error("close database", "error", err)
+		}
+	}()
+
+	if err := seedDefaults(ctx, db, cfg.DefaultTZ); err != nil {
+		return err
+	}
+	settings := household.NewSettingsService(db)
+	runner, _, err := newJobRunner(db, logger)
+	if err != nil {
+		return err
+	}
+
+	sessions, err := auth.NewSessionManager(db, cfg.SessionIdle, cfg.SessionMax)
+	if err != nil {
+		return err
+	}
+	authFlow, err := auth.New(ctx, auth.Config{
+		Issuer:        cfg.OIDCIssuer.String(),
+		ClientID:      cfg.OIDCClientID,
+		ClientSecret:  cfg.OIDCClientSecret.Reveal(),
+		PublicURL:     cfg.PublicURL,
+		SecretKey:     []byte(cfg.SecretKey.Reveal()),
+		AllowedGroups: cfg.OIDCAllowedGroups,
+	}, sessions, logger)
+	if err != nil {
+		return err
+	}
+
+	router, err := server.NewRouter(logger, version, cfg.TrustedProxy, authFlow, sessions, settings, runner, frontend.Assets())
+	if err != nil {
+		return err
+	}
+
+	// Start fails the jobs a previous process left running before any
+	// worker runs. The workers stop, and are waited for, before the
+	// database closes.
+	jobsCtx, stopJobs := context.WithCancel(ctx)
+	defer func() {
+		stopJobs()
+		runner.Wait()
+	}()
+	if err := runner.Start(jobsCtx); err != nil {
+		return err
+	}
 	srv := &http.Server{
 		Addr:              cfg.HTTPAddr,
 		Handler:           router,
@@ -73,12 +135,92 @@ func run(cfg config.Config, logger *slog.Logger) error {
 	return nil
 }
 
+// openSecretBox builds the secret box from the configured key, naming the
+// variable whose file holds a bad key. The key itself is never reported.
+func openSecretBox(key config.Secret) (*secretbox.Box, error) {
+	box, err := secretbox.New(key.Reveal())
+	if err != nil {
+		return nil, fmt.Errorf("%s: %w", config.EnvSecretKeyFile, err)
+	}
+	return box, nil
+}
+
+// bootMigrations is the migration set applied at boot. Tests replace it to
+// prove a failing migration stops the boot.
+var bootMigrations fs.FS = migrations.FS
+
+// openStore opens the database in dataDir and applies bootMigrations. On a
+// migration failure it closes the database and returns the error.
+func openStore(ctx context.Context, dataDir string) (*store.Store, error) {
+	db, err := store.Open(ctx, dataDir)
+	if err != nil {
+		return nil, err
+	}
+	if err := store.Migrate(ctx, db.Writer, bootMigrations); err != nil {
+		return nil, errors.Join(err, db.Close())
+	}
+	return db, nil
+}
+
+// seedSettings creates the household settings on first boot, naming the
+// variable that supplies the zone when it is missing or invalid. Once the
+// settings exist the variable is ignored.
+func seedSettings(ctx context.Context, db *store.Store, defaultTZ string) error {
+	err := household.SeedSettings(ctx, db, defaultTZ)
+	if errors.Is(err, household.ErrNoDefaultZone) || errors.Is(err, household.ErrInvalidDefaultZone) {
+		return fmt.Errorf("%s: a valid IANA zone is required on first boot to create the household settings: %w", config.EnvDefaultTZ, err)
+	}
+	return err
+}
+
+// seedDefaults creates the household settings, AI settings and notification
+// preferences that do not exist yet. Existing rows are never changed.
+func seedDefaults(ctx context.Context, db *store.Store, defaultTZ string) error {
+	if err := seedSettings(ctx, db, defaultTZ); err != nil {
+		return err
+	}
+	if err := household.SeedAISettings(ctx, db); err != nil {
+		return err
+	}
+	return household.SeedNotificationPrefs(ctx, db)
+}
+
+// jobKinds enqueues every job kind the server runs.
+type jobKinds struct {
+	builtins *jobs.Builtins
+}
+
+// newJobRunner returns the job runner with every job kind registered, ready
+// to Start.
+func newJobRunner(db *store.Store, logger *slog.Logger) (*jobs.Runner, *jobKinds, error) {
+	runner, err := jobs.NewRunner(db, logger, jobWorkers)
+	if err != nil {
+		return nil, nil, err
+	}
+	kinds, err := registerJobKinds(runner)
+	if err != nil {
+		return nil, nil, err
+	}
+	return runner, kinds, nil
+}
+
+// registerJobKinds registers every job kind's handler on runner. Each
+// feature's job kinds are registered here.
+func registerJobKinds(runner *jobs.Runner) (*jobKinds, error) {
+	builtins, err := jobs.RegisterBuiltins(runner)
+	if err != nil {
+		return nil, err
+	}
+	return &jobKinds{builtins: builtins}, nil
+}
+
 // logListening logs the startup line. Only the public URL's origin is logged
 // so no credential-bearing URL component can reach the log.
 func logListening(logger *slog.Logger, cfg config.Config) {
 	logger.Info("listening",
 		"addr", cfg.HTTPAddr,
 		"public_origin", cfg.PublicOrigin(),
+		"trusted_proxy", cfg.TrustedProxy,
 		"data_dir", cfg.DataDir,
 		"version", version,
 	)

docs/ARCHITECTURE.md

@@ -29,6 +29,15 @@ docker compose project "mealquest" — 10.60.1.14
 One Go service serves the API, the auth flow, media and the PWA. Its SQLite
 database is replicated by Litestream to the NAS.
 
+Traefik terminates TLS. The service honours `X-Forwarded-For` and
+`X-Forwarded-Proto` only from peers listed in `MEALQUEST_TRUSTED_PROXY`
+(comma-separated IPs/CIDRs; production lists `10.60.1.33`); from any other
+peer they are ignored. The client is the rightmost `X-Forwarded-For` address
+that is not a trusted proxy. The resolved client IP is added as `client_ip`
+to every log line written while handling a request. The OIDC redirect URI
+and the Secure cookies are fixed by `MEALQUEST_PUBLIC_URL`, never by request
+headers, so sign-in works whichever peer the request arrives from.
+
 ## Repository layout
 
 | Path | Purpose |

go.mod

@@ -1,5 +1,24 @@
 module code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest
 
-go 1.25
+go 1.25.0
 
-require github.com/go-chi/chi/v5 v5.3.1
+require (
+	github.com/coreos/go-oidc/v3 v3.21.0
+	github.com/go-chi/chi/v5 v5.3.1
+	github.com/oklog/ulid/v2 v2.1.2
+	golang.org/x/oauth2 v0.36.0
+	modernc.org/sqlite v1.59.0
+)
+
+require (
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/mattn/go-isatty v0.0.24 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	golang.org/x/sys v0.47.0 // indirect
+	modernc.org/libc v1.75.7 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.12.1 // indirect
+)

go.sum

@@ -1,2 +1,61 @@
+github.com/coreos/go-oidc/v3 v3.21.0 h1:wZo4Q9Pum8dYEj0eMUPrqR+kvuGkeUplbLpNCkBqoWM=
+github.com/coreos/go-oidc/v3 v3.21.0/go.mod h1:DYCf24+ncYi+XkIH97GY1+dqoRlbaSI26KVTCI9SrY4=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/go-chi/chi/v5 v5.3.1 h1:3j4HZLGZQ3JpMCrPJF/Jl3mYJfWLKBfNJ6quurUGCf8=
 github.com/go-chi/chi/v5 v5.3.1/go.mod h1:R+tYY2hNuVUUjxoPtqUdgBqevM9s9njzkTLutVsOCto=
+github.com/go-jose/go-jose/v4 v4.1.4 h1:moDMcTHmvE6Groj34emNPLs/qtYXRVcd6S7NHbHz3kA=
+github.com/go-jose/go-jose/v4 v4.1.4/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
+github.com/google/pprof v0.0.0-20260802141513-ef3492d7dac3 h1:LMLX+LgTNWpfvCBdFebv6EsYotImrt/Ppc5cXIriCSo=
+github.com/google/pprof v0.0.0-20260802141513-ef3492d7dac3/go.mod h1:jl5iWTm0/hd5PjEYEOuwAJ57L/CibdZfrqZ5XA5GrCk=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
+github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
+github.com/mattn/go-isatty v0.0.24 h1:tGZZoVgT/KiqK1c8ocVLeDS8BSWMRd47J3Lbz7vsReI=
+github.com/mattn/go-isatty v0.0.24/go.mod h1:nMCL3Zebbrt45jsMDgnfIwz6ydEQApk5oEI3HqDio6A=
+github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
+github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
+github.com/oklog/ulid/v2 v2.1.2 h1:IEclFb9JNvzYA6MW2SCxbLzcHTVsfqm3PrqGQJH5zec=
+github.com/oklog/ulid/v2 v2.1.2/go.mod h1:rcEKHmBBKfef9DhnvX7y1HZBYxjXb0cP5ExxNsTT1QQ=
+github.com/pborman/getopt v0.0.0-20170112200414-7148bc3a4c30/go.mod h1:85jBQOZwpVEaDAr341tbn15RS4fCAsIst0qp7i8ex1o=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+golang.org/x/mod v0.38.0 h1:MECBjubtXD7yj4HrhIUcywNaGeNVUdfVnxmPajOk4yk=
+golang.org/x/mod v0.38.0/go.mod h1:V6Xz0pq8TQ3dGqVQ1FVHuelZpAL0uNhSkk9ogYP3c40=
+golang.org/x/oauth2 v0.36.0 h1:peZ/1z27fi9hUOFCAZaHyrpWG5lwe0RJEEEeH0ThlIs=
+golang.org/x/oauth2 v0.36.0/go.mod h1:YDBUJMTkDnJS+A4BP4eZBjCqtokkg1hODuPjwiGPO7Q=
+golang.org/x/sync v0.22.0 h1:SZjpbeLmrCk4xhRSZFNZW5gFUeCeFgjekvI/+gfScek=
+golang.org/x/sync v0.22.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
+golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/tools v0.48.0 h1:3+hClM1aLL5mjMKm5ovokw9epgRXPuu2tILgismM6RE=
+golang.org/x/tools v0.48.0/go.mod h1:08xX0orndb/F7jJxGDicx061tyd5pcMto75YMAXr6lk=
+modernc.org/cc/v4 v4.29.2 h1:h6+9ciCnPKutf4I03CvheAvDLX7+IHlqR6Iy6J+cgd8=
+modernc.org/cc/v4 v4.29.2/go.mod h1:OnovgIhbbMXMu1aISnJ0wvVD1KnW+cAUJkIrAWh+kVI=
+modernc.org/ccgo/v4 v4.35.0 h1:F+TUsmw09QxLzmi3aeYYGxjAXarmZaKgj3mKQHNaA8w=
+modernc.org/ccgo/v4 v4.35.0/go.mod h1:qrVGs9S3Sr2Ztcg9ve+kTAYMp5a3YvWjo+SoN06kJ5I=
+modernc.org/fileutil v1.4.0 h1:j6ZzNTftVS054gi281TyLjHPp6CPHr2KCxEXjEbD6SM=
+modernc.org/fileutil v1.4.0/go.mod h1:EqdKFDxiByqxLk8ozOxObDSfcVOv/54xDs/DUHdvCUU=
+modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
+modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
+modernc.org/gc/v3 v3.1.5 h1:21ldfPfRYE31Tb7B3mwAK8gy1AxP4+dKjrOQPfqakoc=
+modernc.org/gc/v3 v3.1.5/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
+modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
+modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
+modernc.org/libc v1.75.7 h1:o3DTP9/0p9pKmY2WCKQaySW6wIiZhNM7wc2lUoyhfew=
+modernc.org/libc v1.75.7/go.mod h1:bO5o2ztHxBb2rjz0PgdHN0sSMw57CgxGFLZ3Qd/QpVQ=
+modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
+modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
+modernc.org/memory v1.12.1 h1:nFMiWrpStgZczNl6XI9GnIk/rWhYIyHGUaR04pGbp9g=
+modernc.org/memory v1.12.1/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
+modernc.org/opt v0.2.0 h1:tGyef5ApycA7FSEOMraay9SaTk5zmbx7Tu+cJs4QKZg=
+modernc.org/opt v0.2.0/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
+modernc.org/sqlite v1.59.0 h1:X1es1GpqBlS/5T+vbM4HLUdaa8OtQx468DF2vrx+38A=
+modernc.org/sqlite v1.59.0/go.mod h1:+paeT2A3iPRHkQDwG7oA6Tk0zQd5woMEI8q7orfry8k=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
+modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

internal/auth/actor.go

@@ -0,0 +1,45 @@
+package auth
+
+import (
+	"context"
+	"slices"
+)
+
+// Actor is the signed-in household member a request acts for. Handlers
+// record Actor.Subject as updated_by on edits.
+type Actor struct {
+	Subject string
+	Email   string
+	Name    string
+	Groups  []string
+}
+
+// Actor returns the household member s belongs to.
+func (s Session) Actor() Actor {
+	return Actor{Subject: s.Subject, Email: s.Email, Name: s.Name, Groups: slices.Clone(s.Groups)}
+}
+
+type sessionKey struct{}
+
+// WithSession returns a copy of ctx carrying s. The session middleware calls
+// it for every authenticated request.
+func WithSession(ctx context.Context, s Session) context.Context {
+	return context.WithValue(ctx, sessionKey{}, s)
+}
+
+// SessionFrom returns the session WithSession stored in ctx. ok is false when
+// ctx has none, which behind the session middleware means a wiring bug.
+func SessionFrom(ctx context.Context) (s Session, ok bool) {
+	s, ok = ctx.Value(sessionKey{}).(Session)
+	return s, ok
+}
+
+// ActorFrom returns the actor of the session WithSession stored in ctx. ok is
+// false when ctx has none.
+func ActorFrom(ctx context.Context) (actor Actor, ok bool) {
+	s, ok := SessionFrom(ctx)
+	if !ok {
+		return Actor{}, false
+	}
+	return s.Actor(), true
+}

internal/auth/actor_test.go

@@ -0,0 +1,40 @@
+package auth
+
+import (
+	"context"
+	"slices"
+	"testing"
+)
+
+func TestActorContext(t *testing.T) {
+	t.Parallel()
+	if _, ok := ActorFrom(context.Background()); ok {
+		t.Error("ActorFrom found an actor in an empty context")
+	}
+	if _, ok := SessionFrom(context.Background()); ok {
+		t.Error("SessionFrom found a session in an empty context")
+	}
+	s := Session{Subject: "user-123", Email: "cook@example.com", Name: "Home Cook", Groups: []string{"mealquest-admin"}, CSRFToken: "t"}
+	ctx := WithSession(context.Background(), s)
+	gotSession, ok := SessionFrom(ctx)
+	if !ok || gotSession.Subject != s.Subject || gotSession.CSRFToken != s.CSRFToken {
+		t.Errorf("SessionFrom = %+v (ok=%v), want %+v", gotSession, ok, s)
+	}
+	got, ok := ActorFrom(ctx)
+	if !ok || got.Subject != s.Subject || got.Email != s.Email || got.Name != s.Name || !slices.Equal(got.Groups, s.Groups) {
+		t.Errorf("ActorFrom = %+v (ok=%v), want the session's actor", got, ok)
+	}
+}
+
+func TestSessionActor(t *testing.T) {
+	t.Parallel()
+	s := Session{Subject: "user-123", Email: "cook@example.com", Name: "Home Cook", Groups: []string{"mealquest-admin"}, CSRFToken: "t"}
+	a := s.Actor()
+	if a.Subject != s.Subject || a.Email != s.Email || a.Name != s.Name || !slices.Equal(a.Groups, s.Groups) {
+		t.Errorf("Actor = %+v, want the session's identity", a)
+	}
+	a.Groups[0] = "changed"
+	if s.Groups[0] != "mealquest-admin" {
+		t.Error("Actor shares the session's groups slice")
+	}
+}

internal/auth/auth.go

@@ -0,0 +1,439 @@
+// Package auth signs the household in with Authentik over OpenID Connect.
+// The service is a confidential client: the authorization code, tokens and
+// client secret stay on the server and never reach JavaScript.
+package auth
+
+import (
+	"context"
+	"crypto/rand"
+	"crypto/subtle"
+	"errors"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"net/url"
+	"slices"
+	"sync/atomic"
+	"time"
+
+	"github.com/coreos/go-oidc/v3/oidc"
+	"github.com/go-chi/chi/v5"
+	"golang.org/x/oauth2"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/secureurl"
+)
+
+// Routes owned by this package.
+const (
+	LoginPath    = "/auth/login"
+	CallbackPath = "/auth/callback"
+	LogoutPath   = "/auth/logout"
+)
+
+// providerTimeout bounds every request to the identity provider.
+const providerTimeout = 10 * time.Second
+
+// scopes requested at login.
+var scopes = []string{oidc.ScopeOpenID, "profile", "email", "groups", oidc.ScopeOfflineAccess}
+
+// Claims are the verified ID token claims handed to the session layer.
+type Claims struct {
+	Subject           string   `json:"sub"`
+	Email             string   `json:"email"`
+	EmailVerified     bool     `json:"email_verified"`
+	Name              string   `json:"name"`
+	PreferredUsername string   `json:"preferred_username"`
+	Groups            []string `json:"groups"`
+}
+
+// Sessions is the session layer. StartSession is called once per successful
+// login with claims from a verified ID token; it must set the session cookie
+// on w. EndSession is called on logout; it must end the session r carries,
+// if any, and clear the cookie on w. A returned error fails the request with
+// 500.
+type Sessions interface {
+	StartSession(w http.ResponseWriter, r *http.Request, claims Claims) error
+	EndSession(w http.ResponseWriter, r *http.Request) error
+}
+
+// Config is what New needs to reach the identity provider.
+type Config struct {
+	// Issuer is the exact issuer URL; discovery runs against it.
+	Issuer       string
+	ClientID     string
+	ClientSecret string
+	// PublicURL is the service's public URL; its origin prefixes CallbackPath
+	// to form the redirect URI.
+	PublicURL *url.URL
+	// SecretKey is the server key the login cookie's signing key derives from.
+	SecretKey []byte
+	// AllowedGroups are the household's groups; a sign-in is refused unless
+	// the account is in at least one of them.
+	AllowedGroups []string
+}
+
+// Auth serves the login and callback routes.
+type Auth struct {
+	oauth    oauth2.Config
+	verifier *oidc.IDTokenVerifier
+	provider *oidc.Provider
+	client   *http.Client
+	cookie   loginCookie
+	sessions Sessions
+	allowed  []string
+	// endSessionURL is the provider's end_session_endpoint; logout ends
+	// there so the provider's own session ends too.
+	endSessionURL string
+	logger        *slog.Logger
+}
+
+// New discovers the provider at cfg.Issuer and returns the login flow. It
+// fails if discovery fails or the issuer the provider reports differs.
+func New(ctx context.Context, cfg Config, sessions Sessions, logger *slog.Logger) (*Auth, error) {
+	switch {
+	case cfg.Issuer == "", cfg.ClientID == "", cfg.ClientSecret == "":
+		return nil, errors.New("auth: issuer, client ID and client secret are required")
+	case cfg.PublicURL == nil:
+		return nil, errors.New("auth: public URL is required")
+	case len(cfg.SecretKey) == 0:
+		return nil, errors.New("auth: secret key is required")
+	case sessions == nil:
+		return nil, errors.New("auth: session layer is required")
+	case len(cfg.AllowedGroups) == 0:
+		return nil, errors.New("auth: at least one allowed group is required")
+	}
+
+	if err := checkEndpoint("issuer", cfg.Issuer); err != nil {
+		return nil, err
+	}
+
+	client := &http.Client{Timeout: providerTimeout, CheckRedirect: checkRedirect}
+	discovery := *client
+	recorder := &statusRecorder{next: http.DefaultTransport}
+	discovery.Transport = recorder
+	provider, err := oidc.NewProvider(oidc.ClientContext(ctx, &discovery), cfg.Issuer)
+	if err != nil {
+		return nil, discoveryError(err, int(recorder.status.Load()))
+	}
+	endpoint := provider.Endpoint()
+	var discovered struct {
+		JWKSURI       string `json:"jwks_uri"`
+		EndSessionURI string `json:"end_session_endpoint"`
+	}
+	if err := provider.Claims(&discovered); err != nil {
+		return nil, fmt.Errorf("auth: OIDC discovery: %w", err)
+	}
+	// The token endpoint receives the client secret and the key set decides
+	// which tokens verify, so every endpoint used must pass the same rule.
+	for _, e := range []struct{ name, raw string }{
+		{"authorization endpoint", endpoint.AuthURL},
+		{"token endpoint", endpoint.TokenURL},
+		{"JWKS endpoint", discovered.JWKSURI},
+		{"end session endpoint", discovered.EndSessionURI},
+		// Groups come from userinfo when the ID token carries none, and the
+		// access token is sent there.
+		{"userinfo endpoint", provider.UserInfoEndpoint()},
+	} {
+		if err := checkEndpoint(e.name, e.raw); err != nil {
+			return nil, err
+		}
+	}
+	// client_secret_basic, the OIDC default; no auto-detection retries.
+	endpoint.AuthStyle = oauth2.AuthStyleInHeader
+
+	return &Auth{
+		oauth: oauth2.Config{
+			ClientID:     cfg.ClientID,
+			ClientSecret: cfg.ClientSecret,
+			Endpoint:     endpoint,
+			RedirectURL:  cfg.PublicURL.Scheme + "://" + cfg.PublicURL.Host + CallbackPath,
+			Scopes:       scopes,
+		},
+		verifier: provider.Verifier(&oidc.Config{
+			ClientID:             cfg.ClientID,
+			SupportedSigningAlgs: []string{oidc.RS256},
+		}),
+		provider:      provider,
+		client:        client,
+		allowed:       slices.Clone(cfg.AllowedGroups),
+		cookie:        newLoginCookie(cfg.SecretKey),
+		sessions:      sessions,
+		endSessionURL: discovered.EndSessionURI,
+		logger:        logger,
+	}, nil
+}
+
+// statusRecorder records the status of the last response it carries.
+type statusRecorder struct {
+	next   http.RoundTripper
+	status atomic.Int32
+}
+
+func (s *statusRecorder) RoundTrip(req *http.Request) (*http.Response, error) {
+	resp, err := s.next.RoundTrip(req)
+	if err == nil {
+		s.status.Store(int32(resp.StatusCode))
+	}
+	return resp, err
+}
+
+// discoveryError reports a failed discovery. go-oidc puts the provider's
+// response body in its error for a non-200 discovery response, so that
+// error is replaced by the status alone. Transport errors carry no response
+// content and keep their cause.
+func discoveryError(err error, status int) error {
+	var urlErr *url.Error
+	if !errors.As(err, &urlErr) && status != 0 && status != http.StatusOK {
+		return fmt.Errorf("auth: OIDC discovery: provider answered HTTP %d", status)
+	}
+	return fmt.Errorf("auth: OIDC discovery: %w", err)
+}
+
+// checkEndpoint applies secureurl.Check to the provider URL raw, naming the
+// endpoint in the error.
+func checkEndpoint(name, raw string) error {
+	u, err := url.Parse(raw)
+	if err != nil {
+		return fmt.Errorf("auth: OIDC %s %q is not a valid URL", name, raw)
+	}
+	if err := secureurl.Check(u); err != nil {
+		return fmt.Errorf("auth: OIDC %s %q: %w", name, raw, err)
+	}
+	return nil
+}
+
+// maxRedirects matches net/http's default redirect limit.
+const maxRedirects = 10
+
+// checkRedirect is the provider client's redirect policy. On a 307 or 308 to
+// the same host Go resends the body and Authorization header, which carry the
+// code and client secret, so every target must pass secureurl.Check and an
+// https:// request never follows a redirect to plain http://, even loopback.
+func checkRedirect(req *http.Request, via []*http.Request) error {
+	if len(via) >= maxRedirects {
+		return fmt.Errorf("stopped after %d redirects", maxRedirects)
+	}
+	if err := secureurl.Check(req.URL); err != nil {
+		return fmt.Errorf("redirect refused: %w", err)
+	}
+	if via[len(via)-1].URL.Scheme == "https" && req.URL.Scheme != "https" {
+		return errors.New("redirect refused: https:// to plain http:// downgrade")
+	}
+	return nil
+}
+
+// Mount registers GET LoginPath, GET CallbackPath and POST LogoutPath on r.
+func (a *Auth) Mount(r chi.Router) {
+	r.Get(LoginPath, a.login)
+	r.Get(CallbackPath, a.callback)
+	r.Post(LogoutPath, a.logout)
+}
+
+// EndSessionURL is the provider's end_session_endpoint.
+func (a *Auth) EndSessionURL() string { return a.endSessionURL }
+
+// login starts the authorization code flow with PKCE (S256). The optional
+// "return" query parameter must be a same-origin path; anything else fails
+// the login with 400.
+func (a *Auth) login(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Cache-Control", "no-store")
+
+	returnTo, err := returnPath(r.URL.Query().Get("return"))
+	if err != nil {
+		http.Error(w, "invalid return path", http.StatusBadRequest)
+		return
+	}
+	state := loginState{
+		State:    rand.Text(),
+		Nonce:    rand.Text(),
+		Verifier: oauth2.GenerateVerifier(),
+		Return:   returnTo,
+	}
+	if err := a.cookie.set(w, state, time.Now()); err != nil {
+		a.logger.ErrorContext(r.Context(), "set login cookie", "error", err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+	http.Redirect(w, r, a.oauth.AuthCodeURL(state.State,
+		oidc.Nonce(state.Nonce),
+		oauth2.S256ChallengeOption(state.Verifier),
+	), http.StatusFound)
+}
+
+// callback completes the flow: it checks state against the login cookie,
+// exchanges the code, verifies the ID token and nonce, then starts a session
+// if the account is in an allowed group. Membership is checked on every
+// login, so an account removed from the group is refused at its next one.
+func (a *Auth) callback(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Cache-Control", "no-store")
+	ctx := r.Context()
+	// The login cookie is single-use.
+	a.cookie.clear(w)
+
+	state, err := a.cookie.read(r, time.Now())
+	if err != nil {
+		a.logger.WarnContext(ctx, "login callback without a valid login cookie", "error", err)
+		http.Error(w, "sign-in expired; start again", http.StatusBadRequest)
+		return
+	}
+	q := r.URL.Query()
+	if subtle.ConstantTimeCompare([]byte(q.Get("state")), []byte(state.State)) != 1 {
+		a.logger.WarnContext(ctx, "login callback state mismatch")
+		http.Error(w, "sign-in state mismatch; start again", http.StatusBadRequest)
+		return
+	}
+	if q.Get("error") != "" {
+		// error and error_description are provider-supplied text; only the
+		// fixed category is logged.
+		a.logger.WarnContext(ctx, "identity provider returned an authorization error")
+		http.Error(w, "sign-in was refused", http.StatusUnauthorized)
+		return
+	}
+	code := q.Get("code")
+	if code == "" {
+		http.Error(w, "missing authorization code", http.StatusBadRequest)
+		return
+	}
+
+	claims, err := a.verify(ctx, code, state)
+	if err != nil {
+		a.logger.WarnContext(ctx, "sign-in failed", "error", err)
+		http.Error(w, "sign-in failed", http.StatusUnauthorized)
+		return
+	}
+	if !a.member(claims.Groups) {
+		if claims.Groups == nil {
+			a.logger.WarnContext(ctx, "sign-in refused: no groups claim in the ID token or userinfo", "subject", claims.Subject)
+		} else {
+			a.logger.WarnContext(ctx, "sign-in refused: not in an allowed group", "subject", claims.Subject)
+		}
+		// A session this browser already holds ends too, so a refused
+		// sign-in never leaves it signed in.
+		if err := a.sessions.EndSession(w, r); err != nil {
+			a.logger.ErrorContext(ctx, "end session", "error", err)
+			http.Error(w, "internal error", http.StatusInternalServerError)
+			return
+		}
+		a.refuse(w, r)
+		return
+	}
+	if err := a.sessions.StartSession(w, r, claims); err != nil {
+		a.logger.ErrorContext(ctx, "start session", "error", err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+	http.Redirect(w, r, state.Return, http.StatusSeeOther)
+}
+
+// logout ends the session, clears the cookie and sends the browser to the
+// provider's end_session_endpoint to end the provider session as well.
+func (a *Auth) logout(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Cache-Control", "no-store")
+	if err := a.sessions.EndSession(w, r); err != nil {
+		a.logger.ErrorContext(r.Context(), "end session", "error", err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+	http.Redirect(w, r, a.endSessionURL, http.StatusSeeOther)
+}
+
+// verify exchanges code for tokens and returns the verified ID token claims.
+// The verifier enforces RS256, issuer, audience and expiry; nonce is checked
+// here. When the ID token has no groups claim, Groups comes from userinfo;
+// it stays nil when neither has one.
+func (a *Auth) verify(ctx context.Context, code string, state loginState) (Claims, error) {
+	token, err := a.oauth.Exchange(context.WithValue(ctx, oauth2.HTTPClient, a.client), code,
+		oauth2.VerifierOption(state.Verifier))
+	if err != nil {
+		return Claims{}, exchangeError(err)
+	}
+	raw, ok := token.Extra("id_token").(string)
+	if !ok || raw == "" {
+		return Claims{}, errors.New("token response has no id_token")
+	}
+	idToken, err := a.verifier.Verify(ctx, raw)
+	if err != nil {
+		return Claims{}, verifyError(err)
+	}
+	if subtle.ConstantTimeCompare([]byte(idToken.Nonce), []byte(state.Nonce)) != 1 {
+		return Claims{}, errors.New("ID token nonce mismatch")
+	}
+	var claims Claims
+	if err := idToken.Claims(&claims); err != nil {
+		return Claims{}, fmt.Errorf("decode ID token claims: %w", err)
+	}
+	if claims.Subject == "" {
+		return Claims{}, errors.New("ID token has no subject")
+	}
+	if claims.Groups == nil {
+		groups, err := a.userinfoGroups(ctx, token, claims.Subject)
+		if err != nil {
+			return Claims{}, err
+		}
+		claims.Groups = groups
+	}
+	return claims, nil
+}
+
+// userinfoGroups returns the groups claim from the userinfo endpoint, nil if
+// it has none. The userinfo subject must match the ID token's subject.
+func (a *Auth) userinfoGroups(ctx context.Context, token *oauth2.Token, subject string) ([]string, error) {
+	info, err := a.provider.UserInfo(oidc.ClientContext(ctx, a.client), oauth2.StaticTokenSource(token))
+	if err != nil {
+		return nil, userinfoError(err)
+	}
+	if info.Subject != subject {
+		return nil, errors.New("userinfo subject does not match the ID token")
+	}
+	var claims struct {
+		Groups []string `json:"groups"`
+	}
+	if err := info.Claims(&claims); err != nil {
+		return nil, fmt.Errorf("decode userinfo claims: %w", err)
+	}
+	return claims.Groups, nil
+}
+
+// userinfoError reduces a failed userinfo request to a fixed category, like
+// exchangeError: go-oidc's error text can carry the response body.
+func userinfoError(err error) error {
+	var transport *url.Error
+	if errors.As(err, &transport) {
+		return fmt.Errorf("userinfo: request failed: %s: %w", transport.Op, transport.Err)
+	}
+	return errors.New("userinfo: endpoint returned an unusable response")
+}
+
+// verifyError reduces a failed ID token verification to a fixed category.
+// go-oidc's error text can carry the JWKS endpoint's response body or
+// token-supplied values, so only the expiry of an expired token is kept.
+func verifyError(err error) error {
+	var expired *oidc.TokenExpiredError
+	if errors.As(err, &expired) {
+		return fmt.Errorf("verify ID token: token expired at %s", expired.Expiry.UTC().Format(time.RFC3339))
+	}
+	return errors.New("verify ID token: token or provider key set rejected")
+}
+
+// member reports whether groups contains an allowed group.
+func (a *Auth) member(groups []string) bool {
+	return slices.ContainsFunc(groups, func(g string) bool { return slices.Contains(a.allowed, g) })
+}
+
+// exchangeError reduces a failed code exchange to a fixed category and safe
+// metadata. The oauth2 error text can carry the token endpoint's response
+// body or error_description, which may echo credentials, so it is dropped.
+func exchangeError(err error) error {
+	var retrieve *oauth2.RetrieveError
+	var transport *url.Error
+	switch {
+	case errors.As(err, &retrieve):
+		return fmt.Errorf("exchange code: token endpoint rejected the request (HTTP %d)", retrieve.Response.StatusCode)
+	case errors.As(err, &transport):
+		// Request failures never carry the response. The URL is dropped: after
+		// a refused redirect it is the provider-supplied Location.
+		return fmt.Errorf("exchange code: token request failed: %s: %w", transport.Op, transport.Err)
+	default:
+		return errors.New("exchange code: token endpoint returned an unusable response")
+	}
+}

internal/auth/cookie.go

@@ -0,0 +1,124 @@
+package auth
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+)
+
+const (
+	loginCookieName = "__Host-mealquest_login"
+	loginCookieTTL  = 10 * time.Minute
+	// loginCookieKeyLabel separates the login cookie's signing key from other
+	// keys derived from the same server secret.
+	loginCookieKeyLabel = "mealquest auth login cookie v1"
+)
+
+// loginState travels from login to callback in the signed login cookie.
+type loginState struct {
+	State    string `json:"s"`
+	Nonce    string `json:"n"`
+	Verifier string `json:"v"`
+	Return   string `json:"r"`
+	Expires  int64  `json:"e"` // Unix seconds
+}
+
+// loginCookie signs and verifies the login cookie with HMAC-SHA256.
+type loginCookie struct {
+	key []byte
+}
+
+func newLoginCookie(secretKey []byte) loginCookie {
+	mac := hmac.New(sha256.New, secretKey)
+	mac.Write([]byte(loginCookieKeyLabel))
+	return loginCookie{key: mac.Sum(nil)}
+}
+
+func (c loginCookie) sign(payload string) string {
+	mac := hmac.New(sha256.New, c.key)
+	mac.Write([]byte(payload))
+	return base64.RawURLEncoding.EncodeToString(mac.Sum(nil))
+}
+
+func (c loginCookie) set(w http.ResponseWriter, s loginState, now time.Time) error {
+	s.Expires = now.Add(loginCookieTTL).Unix()
+	data, err := json.Marshal(s)
+	if err != nil {
+		return err
+	}
+	payload := base64.RawURLEncoding.EncodeToString(data)
+	http.SetCookie(w, &http.Cookie{
+		Name:     loginCookieName,
+		Value:    payload + "." + c.sign(payload),
+		Path:     "/",
+		MaxAge:   int(loginCookieTTL / time.Second),
+		Secure:   true,
+		HttpOnly: true,
+		// Lax so the cookie rides the provider's top-level redirect back.
+		SameSite: http.SameSiteLaxMode,
+	})
+	return nil
+}
+
+func (c loginCookie) clear(w http.ResponseWriter) {
+	http.SetCookie(w, &http.Cookie{
+		Name:     loginCookieName,
+		Path:     "/",
+		MaxAge:   -1,
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: http.SameSiteLaxMode,
+	})
+}
+
+func (c loginCookie) read(r *http.Request, now time.Time) (loginState, error) {
+	cookie, err := r.Cookie(loginCookieName)
+	if err != nil {
+		return loginState{}, errors.New("login cookie missing")
+	}
+	payload, sig, ok := strings.Cut(cookie.Value, ".")
+	if !ok || !hmac.Equal([]byte(sig), []byte(c.sign(payload))) {
+		return loginState{}, errors.New("login cookie signature invalid")
+	}
+	data, err := base64.RawURLEncoding.DecodeString(payload)
+	if err != nil {
+		return loginState{}, fmt.Errorf("login cookie encoding: %w", err)
+	}
+	var s loginState
+	if err := json.Unmarshal(data, &s); err != nil {
+		return loginState{}, fmt.Errorf("login cookie payload: %w", err)
+	}
+	if now.Unix() >= s.Expires {
+		return loginState{}, errors.New("login cookie expired")
+	}
+	return s, nil
+}
+
+// returnPath validates the optional post-login return path. Empty means "/".
+// Only same-origin absolute paths are allowed: no scheme, host, protocol-
+// relative "//" prefix, backslashes or control characters.
+func returnPath(raw string) (string, error) {
+	if raw == "" {
+		return "/", nil
+	}
+	if !strings.HasPrefix(raw, "/") || strings.HasPrefix(raw, "//") || strings.ContainsRune(raw, '\\') {
+		return "", errors.New("return path must be a same-origin path")
+	}
+	for _, c := range raw {
+		if c < 0x20 || c == 0x7f {
+			return "", errors.New("return path contains a control character")
+		}
+	}
+	u, err := url.Parse(raw)
+	if err != nil || u.Scheme != "" || u.Host != "" || u.User != nil {
+		return "", errors.New("return path must be a same-origin path")
+	}
+	return raw, nil
+}

internal/auth/gate_test.go

@@ -0,0 +1,264 @@
+package auth
+
+import (
+	"context"
+	"errors"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/url"
+	"slices"
+	"strings"
+	"testing"
+)
+
+// signInWith completes a login whose ID token has claims edited by edit.
+func (h *harness) signInWith(t *testing.T, edit func(claims map[string]any)) *http.Response {
+	t.Helper()
+	l := h.login(t, LoginPath)
+	c := h.provider.claims(l.query.Get("nonce"))
+	edit(c)
+	return h.callback(l, l.query.Get("state"), h.provider.signRS256(c))
+}
+
+// assertRefused checks resp is the refused-sign-in page and starts no
+// session.
+func assertRefused(t *testing.T, resp *http.Response) {
+	t.Helper()
+	if resp.StatusCode != http.StatusForbidden {
+		t.Fatalf("callback status = %d, want 403", resp.StatusCode)
+	}
+	if ct := resp.Header.Get("Content-Type"); ct != "text/html; charset=utf-8" {
+		t.Errorf("Content-Type = %q, want text/html; charset=utf-8", ct)
+	}
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, want := range []string{
+		"This kitchen is for the household only",
+		`<form method="post" action="/auth/logout">`,
+		"Sign out",
+	} {
+		if !strings.Contains(string(body), want) {
+			t.Errorf("refused page lacks %q:\n%s", want, body)
+		}
+	}
+	for _, c := range resp.Cookies() {
+		// Clearing a session cookie (negative Max-Age) is expected.
+		if (c.Name == SessionCookieName || c.Name == "test_session") && c.MaxAge >= 0 {
+			t.Errorf("refused sign-in set session cookie %s", c.Name)
+		}
+	}
+	assertLoginCookieCleared(t, resp)
+}
+
+func TestGroupGateMember(t *testing.T) {
+	t.Parallel()
+	// Any one allowed group is enough, alongside groups that are not allowed.
+	h := newHarness(t)
+	resp := h.signInWith(t, func(c map[string]any) { c["groups"] = []string{"guests", "mealquest-family"} })
+	if resp.StatusCode != http.StatusSeeOther {
+		t.Fatalf("callback status = %d, want 303", resp.StatusCode)
+	}
+	if started := h.sessions.started(); len(started) != 1 || !slices.Equal(started[0].Groups, []string{"guests", "mealquest-family"}) {
+		t.Errorf("sessions started = %+v, want one with the ID token groups", started)
+	}
+	if n := h.provider.userinfoRequests(); n != 0 {
+		t.Errorf("userinfo requested %d times, want 0 when the ID token has groups", n)
+	}
+}
+
+func TestGroupGateRefused(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		name     string
+		groups   any // ID token groups claim; nil removes it
+		userinfo map[string]any
+	}{
+		{name: "non-member", groups: []string{"guests", "MEALQUEST-ADMIN"}},
+		{name: "empty groups claim", groups: []string{}},
+		{name: "groups claim missing from ID token and userinfo", groups: nil},
+		{
+			name:     "non-member in userinfo",
+			groups:   nil,
+			userinfo: map[string]any{"sub": "user-123", "groups": []string{"guests"}},
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+			h := newHarness(t)
+			if tc.userinfo != nil {
+				h.provider.setUserinfo(tc.userinfo)
+			}
+			resp := h.signInWith(t, func(c map[string]any) {
+				if tc.groups == nil {
+					delete(c, "groups")
+				} else {
+					c["groups"] = tc.groups
+				}
+			})
+			assertRefused(t, resp)
+			if started := h.sessions.started(); len(started) != 0 {
+				t.Errorf("sessions started = %+v, want none", started)
+			}
+			if !strings.Contains(h.logs.String(), "sign-in refused") {
+				t.Errorf("refusal not logged:\n%s", h.logs.String())
+			}
+		})
+	}
+}
+
+func TestGroupGateUsesUserinfoWhenIDTokenHasNoGroups(t *testing.T) {
+	t.Parallel()
+	h := newHarness(t)
+	h.provider.setUserinfo(map[string]any{"sub": "user-123", "groups": []string{"mealquest-admin"}})
+	resp := h.signInWith(t, func(c map[string]any) { delete(c, "groups") })
+	if resp.StatusCode != http.StatusSeeOther {
+		t.Fatalf("callback status = %d, want 303", resp.StatusCode)
+	}
+	if started := h.sessions.started(); len(started) != 1 || !slices.Equal(started[0].Groups, []string{"mealquest-admin"}) {
+		t.Errorf("sessions started = %+v, want one with the userinfo groups", started)
+	}
+	if n := h.provider.userinfoRequests(); n != 1 {
+		t.Errorf("userinfo requested %d times, want 1", n)
+	}
+}
+
+func TestGroupGateUserinfoFailures(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		name     string
+		userinfo map[string]any
+	}{
+		{"subject mismatch", map[string]any{"sub": "someone-else", "groups": []string{"mealquest-admin"}}},
+		{"malformed groups", map[string]any{"sub": "user-123", "groups": "mealquest-admin"}},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+			h := newHarness(t)
+			h.provider.setUserinfo(tc.userinfo)
+			resp := h.signInWith(t, func(c map[string]any) { delete(c, "groups") })
+			if resp.StatusCode != http.StatusUnauthorized {
+				t.Errorf("callback status = %d, want 401", resp.StatusCode)
+			}
+			if started := h.sessions.started(); len(started) != 0 {
+				t.Errorf("sessions started = %+v, want none", started)
+			}
+		})
+	}
+}
+
+// A failed userinfo request fails the sign-in without logging the
+// endpoint's response, which may echo credentials.
+func TestGroupGateUserinfoErrorNotLogged(t *testing.T) {
+	t.Parallel()
+	h := newHarness(t)
+	h.provider.mu.Lock()
+	h.provider.userinfoReply = &tokenReply{status: http.StatusInternalServerError, body: `{"error":"leaked-s3cret"}`}
+	h.provider.mu.Unlock()
+	resp := h.signInWith(t, func(c map[string]any) { delete(c, "groups") })
+	if resp.StatusCode != http.StatusUnauthorized {
+		t.Errorf("callback status = %d, want 401", resp.StatusCode)
+	}
+	if started := h.sessions.started(); len(started) != 0 {
+		t.Errorf("sessions started = %+v, want none", started)
+	}
+	logs := h.logs.String()
+	if !strings.Contains(logs, "userinfo") || strings.Contains(logs, "leaked-s3cret") {
+		t.Errorf("logs = %s, want the userinfo failure without the response body", logs)
+	}
+}
+
+// Membership is checked at every login: after removal from the group, the
+// next login is refused and starts no session.
+func TestGroupGateRemovedMemberRefusedAtNextLogin(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	h.signIn(t)
+	if n := len(h.rows(t)); n != 1 {
+		t.Fatalf("sessions after first login = %d, want 1", n)
+	}
+
+	resp := h.signInWith(t, func(c map[string]any) { c["groups"] = []string{"former-household"} })
+	assertRefused(t, resp)
+	if n := len(h.rows(t)); n != 1 {
+		t.Errorf("sessions after refused login = %d, want still 1", n)
+	}
+}
+
+// A refused sign-in from a browser that still holds a session ends that
+// session and clears its cookie.
+func TestGroupGateRefusalEndsExistingSession(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+
+	l := h.login(t, LoginPath)
+	c := h.provider.claims(l.query.Get("nonce"))
+	c["groups"] = []string{"former-household"}
+	code := h.provider.authorize(l.query.Get("code_challenge"), h.provider.signRS256(c))
+	q := url.Values{"code": {code}, "state": {l.query.Get("state")}}
+	resp := h.get(CallbackPath+"?"+q.Encode(), l.cookie, cookie)
+
+	if resp.StatusCode != http.StatusForbidden {
+		t.Fatalf("callback status = %d, want 403", resp.StatusCode)
+	}
+	if n := len(h.rows(t)); n != 0 {
+		t.Errorf("sessions after refused login = %d, want 0", n)
+	}
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Errorf("old session lookup error = %v, want ErrNoSession", err)
+	}
+	cleared := false
+	for _, c := range resp.Cookies() {
+		cleared = cleared || (c.Name == SessionCookieName && c.MaxAge < 0)
+	}
+	if !cleared {
+		t.Error("refused sign-in did not clear the session cookie")
+	}
+}
+
+func TestGroupGateRefusalEndSessionError(t *testing.T) {
+	t.Parallel()
+	h := newHarness(t)
+	h.sessions.err = errors.New("database down")
+	resp := h.signInWith(t, func(c map[string]any) { c["groups"] = []string{"guests"} })
+	if resp.StatusCode != http.StatusInternalServerError {
+		t.Errorf("callback status = %d, want 500", resp.StatusCode)
+	}
+}
+
+func TestNewRequiresAllowedGroups(t *testing.T) {
+	t.Parallel()
+	p := newFakeProvider(t)
+	_, err := New(context.Background(), Config{
+		Issuer:       p.issuer(),
+		ClientID:     testClientID,
+		ClientSecret: testClientSecret,
+		PublicURL:    testPublicURL,
+		SecretKey:    []byte("k"),
+	}, &memorySessions{}, slog.New(slog.DiscardHandler))
+	if err == nil || !strings.Contains(err.Error(), "allowed group") {
+		t.Errorf("New error = %v, want missing allowed groups named", err)
+	}
+}
+
+func TestNewRequiresUserinfoEndpoint(t *testing.T) {
+	t.Parallel()
+	p := newFakeProvider(t)
+	p.discoveryOverrides = map[string]any{"userinfo_endpoint": nil}
+	_, err := New(context.Background(), Config{
+		Issuer:        p.issuer(),
+		ClientID:      testClientID,
+		ClientSecret:  testClientSecret,
+		PublicURL:     testPublicURL,
+		SecretKey:     []byte("k"),
+		AllowedGroups: testAllowedGroups,
+	}, &memorySessions{}, slog.New(slog.DiscardHandler))
+	if err == nil || !strings.Contains(err.Error(), "userinfo endpoint") {
+		t.Errorf("New error = %v, want the missing userinfo endpoint named", err)
+	}
+}

internal/auth/refused.go

@@ -0,0 +1,37 @@
+package auth
+
+import (
+	"io"
+	"net/http"
+)
+
+// refusedPage is shown when a sign-in succeeds at the provider but the
+// account is not in the household's group. Signing out ends the provider
+// session too, so another account can sign in.
+const refusedPage = `<!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>MealQuest</title>
+</head>
+<body>
+<main>
+<h1>This kitchen is for the household only</h1>
+<p>The account you signed in with is not part of our kitchen.</p>
+<form method="post" action="` + LogoutPath + `">
+<button type="submit">Sign out</button>
+</form>
+</main>
+</body>
+</html>
+`
+
+// refuse writes the refused-sign-in page with 403.
+func (a *Auth) refuse(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	w.WriteHeader(http.StatusForbidden)
+	if _, err := io.WriteString(w, refusedPage); err != nil {
+		a.logger.WarnContext(r.Context(), "write refused sign-in page", "error", err)
+	}
+}

internal/auth/session.go

@@ -0,0 +1,238 @@
+package auth
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"database/sql"
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+// SessionCookieName is the session cookie. The __Host- prefix makes the
+// browser insist on Secure, Path=/ and no Domain.
+const SessionCookieName = "__Host-mealquest_session"
+
+// sessionIDBytes is the size of the random session ID: 256 bits.
+const sessionIDBytes = 32
+
+// ErrNoSession means the request carries no live session: the cookie is
+// missing or malformed, or its session is unknown, ended or expired.
+var ErrNoSession = errors.New("auth: no valid session")
+
+// Session is a signed-in household member's server-side session.
+type Session struct {
+	Subject   string
+	Email     string
+	Name      string
+	Groups    []string
+	CSRFToken string
+	CreatedAt time.Time
+	// LastSeenAt is the last time the session was used.
+	LastSeenAt time.Time
+	// ExpiresAt is when the session ends unless used again first.
+	ExpiresAt time.Time
+}
+
+// SessionManager keeps sessions in the sessions table. The cookie holds only
+// the random session ID; the table holds only its SHA-256 hash. A session
+// ends after idle without use and always max after it was created.
+type SessionManager struct {
+	db   *store.Store
+	idle time.Duration
+	max  time.Duration
+	// now is the clock; tests replace it.
+	now func() time.Time
+}
+
+// NewSessionManager returns a SessionManager over db. idle and max must be
+// positive with max >= idle.
+func NewSessionManager(db *store.Store, idle, max time.Duration) (*SessionManager, error) {
+	switch {
+	case db == nil:
+		return nil, errors.New("auth: session store is required")
+	case idle <= 0 || max <= 0:
+		return nil, errors.New("auth: session idle and max lifetimes must be positive")
+	case max < idle:
+		return nil, errors.New("auth: session max lifetime must be at least the idle lifetime")
+	}
+	return &SessionManager{db: db, idle: idle, max: max, now: time.Now}, nil
+}
+
+// StartSession creates a session for claims and sets the session cookie.
+func (m *SessionManager) StartSession(w http.ResponseWriter, r *http.Request, claims Claims) error {
+	if claims.Subject == "" {
+		return errors.New("auth: session needs a subject")
+	}
+	id, csrf := randomToken(), randomToken()
+	groups := claims.Groups
+	if groups == nil {
+		groups = []string{}
+	}
+	groupsJSON, err := json.Marshal(groups)
+	if err != nil {
+		return fmt.Errorf("auth: encode session groups: %w", err)
+	}
+
+	now := m.timestamp()
+	if _, err := m.db.Writer.ExecContext(r.Context(), `
+		INSERT INTO sessions (id_hash, subject, email, name, groups, csrf_token, created_at, last_seen_at, expires_at)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+		hashSessionID(id), claims.Subject, claims.Email, claims.Name, string(groupsJSON), csrf,
+		now, now, m.expiry(now.Time, now.Time),
+	); err != nil {
+		return fmt.Errorf("auth: create session: %w", err)
+	}
+
+	// The cookie outlives idle gaps so a returning device presents its ID;
+	// the server decides whether the session is still live. Max-Age is whole
+	// seconds, rounded up so the cookie never ends before the absolute limit.
+	http.SetCookie(w, sessionCookie(id, cookieMaxAge(m.max)))
+	return nil
+}
+
+// cookieMaxAge is lifetime in whole seconds, rounded up. It rounds the
+// quotient rather than adding to lifetime, which would overflow near the
+// largest time.Duration.
+func cookieMaxAge(lifetime time.Duration) int {
+	seconds := lifetime / time.Second
+	if lifetime%time.Second != 0 {
+		seconds++
+	}
+	return int(seconds)
+}
+
+// SessionFor returns the live session r carries and slides its last use to
+// now. It returns ErrNoSession when there is none; an expired session is
+// deleted.
+func (m *SessionManager) SessionFor(r *http.Request) (Session, error) {
+	idHash, err := sessionIDHash(r)
+	if err != nil {
+		return Session{}, err
+	}
+	now := m.timestamp()
+
+	var s Session
+	live := false
+	err = m.db.WithTx(r.Context(), func(tx *sql.Tx) error {
+		var groupsJSON string
+		var created, lastSeen, expires store.Timestamp
+		err := tx.QueryRowContext(r.Context(), `
+			SELECT subject, email, name, groups, csrf_token, created_at, last_seen_at, expires_at
+			FROM sessions WHERE id_hash = ?`, idHash,
+		).Scan(&s.Subject, &s.Email, &s.Name, &groupsJSON, &s.CSRFToken, &created, &lastSeen, &expires)
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil
+		}
+		if err != nil {
+			return fmt.Errorf("auth: read session: %w", err)
+		}
+
+		if !now.Before(expires.Time) || now.Sub(lastSeen.Time) >= m.idle || now.Sub(created.Time) >= m.max {
+			if _, err := tx.ExecContext(r.Context(), `DELETE FROM sessions WHERE id_hash = ?`, idHash); err != nil {
+				return fmt.Errorf("auth: delete expired session: %w", err)
+			}
+			return nil
+		}
+
+		if err := json.Unmarshal([]byte(groupsJSON), &s.Groups); err != nil {
+			return fmt.Errorf("auth: decode session groups: %w", err)
+		}
+		expiresAt := m.expiry(created.Time, now.Time)
+		if _, err := tx.ExecContext(r.Context(), `
+			UPDATE sessions SET last_seen_at = ?, expires_at = ? WHERE id_hash = ?`,
+			now, expiresAt, idHash,
+		); err != nil {
+			return fmt.Errorf("auth: slide session: %w", err)
+		}
+		s.CreatedAt, s.LastSeenAt, s.ExpiresAt = created.Time, now.Time, expiresAt.Time
+		live = true
+		return nil
+	})
+	if err != nil {
+		return Session{}, err
+	}
+	if !live {
+		return Session{}, ErrNoSession
+	}
+	return s, nil
+}
+
+// EndSession deletes the session r carries, if any, and clears the cookie.
+func (m *SessionManager) EndSession(w http.ResponseWriter, r *http.Request) error {
+	http.SetCookie(w, sessionCookie("", -1))
+	idHash, err := sessionIDHash(r)
+	if errors.Is(err, ErrNoSession) {
+		return nil
+	}
+	if err != nil {
+		return err
+	}
+	if _, err := m.db.Writer.ExecContext(r.Context(), `DELETE FROM sessions WHERE id_hash = ?`, idHash); err != nil {
+		return fmt.Errorf("auth: delete session: %w", err)
+	}
+	return nil
+}
+
+// timestamp is the clock's current instant at stored precision.
+func (m *SessionManager) timestamp() store.Timestamp {
+	return store.Timestamp{Time: m.now().UTC().Truncate(time.Millisecond)}
+}
+
+// expiry is when a session created at created and last used at lastSeen
+// ends: idle after lastSeen, but never later than max after created.
+func (m *SessionManager) expiry(created, lastSeen time.Time) store.Timestamp {
+	idle, absolute := lastSeen.Add(m.idle), created.Add(m.max)
+	if absolute.Before(idle) {
+		return store.Timestamp{Time: absolute}
+	}
+	return store.Timestamp{Time: idle}
+}
+
+// sessionCookie is the session cookie carrying value, with maxAge seconds;
+// a negative maxAge clears it.
+func sessionCookie(value string, maxAge int) *http.Cookie {
+	return &http.Cookie{
+		Name:     SessionCookieName,
+		Value:    value,
+		Path:     "/",
+		MaxAge:   maxAge,
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: http.SameSiteLaxMode,
+	}
+}
+
+// sessionIDHash returns the stored hash of r's session ID, or ErrNoSession
+// when the cookie is missing or is not a well-formed ID.
+func sessionIDHash(r *http.Request) (string, error) {
+	c, err := r.Cookie(SessionCookieName)
+	if err != nil {
+		return "", ErrNoSession
+	}
+	raw, err := base64.RawURLEncoding.DecodeString(c.Value)
+	if err != nil || len(raw) != sessionIDBytes {
+		return "", ErrNoSession
+	}
+	return hashSessionID(c.Value), nil
+}
+
+// hashSessionID is the SHA-256 hex digest of the cookie value.
+func hashSessionID(id string) string {
+	sum := sha256.Sum256([]byte(id))
+	return hex.EncodeToString(sum[:])
+}
+
+// randomToken returns 256 random bits, base64url-encoded without padding.
+// crypto/rand.Read never returns an error; it crashes the program instead.
+func randomToken() string {
+	b := make([]byte, sessionIDBytes)
+	rand.Read(b)
+	return base64.RawURLEncoding.EncodeToString(b)
+}

internal/auth/session_test.go

@@ -0,0 +1,523 @@
+package auth
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"slices"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/go-chi/chi/v5"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+const (
+	testIdle = 30 * 24 * time.Hour
+	testMax  = 180 * 24 * time.Hour
+)
+
+// testEpoch is the fake clock's starting instant.
+var testEpoch = time.Date(2026, 10, 3, 18, 30, 0, 0, time.UTC)
+
+// sessionHarness runs the real login flow against a fake provider with a
+// SessionManager over a migrated database and a fake clock.
+type sessionHarness struct {
+	*harness
+	db       *store.Store
+	sessions *SessionManager
+	auth     *Auth
+	clock    time.Time
+}
+
+func newSessionHarness(t *testing.T) *sessionHarness {
+	t.Helper()
+	ctx := context.Background()
+	db, err := store.Open(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := store.Migrate(ctx, db.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	sessions, err := NewSessionManager(db, testIdle, testMax)
+	if err != nil {
+		t.Fatal(err)
+	}
+	h := &sessionHarness{db: db, sessions: sessions, clock: testEpoch}
+	sessions.now = func() time.Time { return h.clock }
+
+	p := newFakeProvider(t)
+	logs := &syncBuffer{}
+	a, err := New(ctx, Config{
+		Issuer:        p.issuer(),
+		ClientID:      testClientID,
+		ClientSecret:  testClientSecret,
+		PublicURL:     testPublicURL,
+		SecretKey:     []byte("server-secret-key"),
+		AllowedGroups: testAllowedGroups,
+	}, sessions, slog.New(slog.NewTextHandler(logs, nil)))
+	if err != nil {
+		t.Fatal(err)
+	}
+	r := chi.NewRouter()
+	a.Mount(r)
+	h.harness = &harness{provider: p, router: r, logs: logs}
+	h.auth = a
+	return h
+}
+
+func (h *sessionHarness) advance(d time.Duration) { h.clock = h.clock.Add(d) }
+
+// signIn completes a login and returns the callback response and the
+// session cookie it set.
+func (h *sessionHarness) signIn(t *testing.T) (*http.Response, *http.Cookie) {
+	t.Helper()
+	l := h.login(t, LoginPath)
+	resp := h.callback(l, l.query.Get("state"), h.provider.signRS256(h.provider.claims(l.query.Get("nonce"))))
+	if resp.StatusCode != http.StatusSeeOther {
+		t.Fatalf("callback status = %d, want 303", resp.StatusCode)
+	}
+	for _, c := range resp.Cookies() {
+		if c.Name == SessionCookieName {
+			return resp, c
+		}
+	}
+	t.Fatalf("callback set no %s cookie", SessionCookieName)
+	return nil, nil
+}
+
+// use looks up the session cookie c names.
+func (h *sessionHarness) use(c *http.Cookie) (Session, error) {
+	req := httptest.NewRequest(http.MethodGet, "/api/anything", nil)
+	if c != nil {
+		req.AddCookie(c)
+	}
+	return h.sessions.SessionFor(req)
+}
+
+type sessionRow struct {
+	idHash, subject, email, name, groups, csrf string
+	created, lastSeen, expires                 store.Timestamp
+}
+
+func (h *sessionHarness) rows(t *testing.T) []sessionRow {
+	t.Helper()
+	rs, err := h.db.Reader.Query(`SELECT id_hash, subject, email, name, groups, csrf_token,
+		created_at, last_seen_at, expires_at FROM sessions`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rs.Close()
+	var out []sessionRow
+	for rs.Next() {
+		var r sessionRow
+		if err := rs.Scan(&r.idHash, &r.subject, &r.email, &r.name, &r.groups, &r.csrf,
+			&r.created, &r.lastSeen, &r.expires); err != nil {
+			t.Fatal(err)
+		}
+		out = append(out, r)
+	}
+	if err := rs.Err(); err != nil {
+		t.Fatal(err)
+	}
+	return out
+}
+
+// sessionSetCookie returns the raw Set-Cookie header for the session cookie.
+func sessionSetCookie(t *testing.T, resp *http.Response) string {
+	t.Helper()
+	for _, v := range resp.Header.Values("Set-Cookie") {
+		if strings.HasPrefix(v, SessionCookieName+"=") {
+			return v
+		}
+	}
+	t.Fatalf("no Set-Cookie for %s in %q", SessionCookieName, resp.Header.Values("Set-Cookie"))
+	return ""
+}
+
+// assertSessionCookieAttributes checks the attributes the __Host- prefix
+// and D-004 require, on the raw header so nothing is lost in parsing.
+func assertSessionCookieAttributes(t *testing.T, raw string) {
+	t.Helper()
+	attrs := map[string]bool{}
+	for _, a := range strings.Split(raw, ";")[1:] {
+		name, _, _ := strings.Cut(strings.TrimSpace(a), "=")
+		attrs[strings.ToLower(name)] = true
+	}
+	for _, want := range []string{"Path=/", "HttpOnly", "Secure", "SameSite=Lax"} {
+		if !slices.Contains(strings.Split(raw, "; "), want) {
+			t.Errorf("session Set-Cookie %q lacks %s", raw, want)
+		}
+	}
+	if attrs["domain"] {
+		t.Errorf("session Set-Cookie %q has a Domain", raw)
+	}
+}
+
+func sha256Hex(s string) string {
+	sum := sha256.Sum256([]byte(s))
+	return hex.EncodeToString(sum[:])
+}
+
+func TestCallbackStartsSession(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	resp, cookie := h.signIn(t)
+
+	assertSessionCookieAttributes(t, sessionSetCookie(t, resp))
+	if cookie.MaxAge != int(testMax/time.Second) {
+		t.Errorf("session cookie MaxAge = %d, want %d", cookie.MaxAge, int(testMax/time.Second))
+	}
+
+	rows := h.rows(t)
+	if len(rows) != 1 {
+		t.Fatalf("sessions has %d rows, want 1", len(rows))
+	}
+	r := rows[0]
+	if len(cookie.Value) != 43 {
+		t.Errorf("session ID %q is %d chars, want 43 (256 bits, base64url)", cookie.Value, len(cookie.Value))
+	}
+	if r.idHash != sha256Hex(cookie.Value) {
+		t.Errorf("id_hash = %q, want the SHA-256 of the cookie value", r.idHash)
+	}
+	if r.subject != "user-123" || r.email != "cook@example.com" || r.name != "Home Cook" ||
+		r.groups != `["mealquest-admin"]` {
+		t.Errorf("session row = %+v, want the ID token claims", r)
+	}
+	if len(r.csrf) != 43 || r.csrf == cookie.Value {
+		t.Errorf("csrf_token = %q, want a separate 256-bit token", r.csrf)
+	}
+	if !r.created.Equal(testEpoch) || !r.lastSeen.Equal(testEpoch) || !r.expires.Equal(testEpoch.Add(testIdle)) {
+		t.Errorf("created, last_seen, expires = %v, %v, %v, want %v, %v, %v",
+			r.created, r.lastSeen, r.expires, testEpoch, testEpoch, testEpoch.Add(testIdle))
+	}
+
+	s, err := h.use(cookie)
+	if err != nil {
+		t.Fatalf("SessionFor = %v, want the new session", err)
+	}
+	if s.Subject != "user-123" || s.CSRFToken != r.csrf || !slices.Equal(s.Groups, []string{"mealquest-admin"}) {
+		t.Errorf("SessionFor = %+v", s)
+	}
+}
+
+func TestStartSessionStoresOnlyTheHash(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+	var n int
+	err := h.db.Reader.QueryRow(`SELECT count(*) FROM sessions WHERE
+		id_hash = ?1 OR subject = ?1 OR email = ?1 OR name = ?1 OR groups = ?1 OR csrf_token = ?1`,
+		cookie.Value).Scan(&n)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if n != 0 {
+		t.Error("the raw session ID is stored in the sessions table")
+	}
+}
+
+func TestSessionLastSeenSlides(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+
+	// Used every 20 days, the session outlives several idle periods.
+	for range 4 {
+		h.advance(20 * 24 * time.Hour)
+		s, err := h.use(cookie)
+		if err != nil {
+			t.Fatalf("at %v SessionFor = %v, want the session", h.clock, err)
+		}
+		if !s.LastSeenAt.Equal(h.clock) || !s.ExpiresAt.Equal(h.clock.Add(testIdle)) {
+			t.Errorf("at %v session last seen %v, expires %v, want %v, %v",
+				h.clock, s.LastSeenAt, s.ExpiresAt, h.clock, h.clock.Add(testIdle))
+		}
+		r := h.rows(t)[0]
+		if !r.lastSeen.Equal(h.clock) || !r.expires.Equal(h.clock.Add(testIdle)) || !r.created.Equal(testEpoch) {
+			t.Errorf("at %v row created %v, last seen %v, expires %v", h.clock, r.created, r.lastSeen, r.expires)
+		}
+	}
+}
+
+func TestSessionIdleExpiry(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+
+	h.advance(testIdle - time.Millisecond)
+	if _, err := h.use(cookie); err != nil {
+		t.Fatalf("just inside the idle limit SessionFor = %v, want the session", err)
+	}
+	h.advance(testIdle)
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Fatalf("after idle SessionFor = %v, want ErrNoSession", err)
+	}
+	if n := len(h.rows(t)); n != 0 {
+		t.Errorf("expired session left %d rows, want 0", n)
+	}
+	// Turning the clock back cannot revive it.
+	h.clock = testEpoch
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Errorf("after deletion SessionFor = %v, want ErrNoSession", err)
+	}
+}
+
+func TestSessionAbsoluteExpiry(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+
+	for h.clock.Before(testEpoch.Add(testMax - 20*24*time.Hour)) {
+		h.advance(20 * 24 * time.Hour)
+		if _, err := h.use(cookie); err != nil {
+			t.Fatalf("at %v SessionFor = %v, want the session", h.clock, err)
+		}
+	}
+	// Last used 20 days before the absolute limit: the idle window would run
+	// past it, so expiry is capped there.
+	if r := h.rows(t)[0]; !r.expires.Equal(testEpoch.Add(testMax)) {
+		t.Errorf("expires_at = %v, want the absolute limit %v", r.expires, testEpoch.Add(testMax))
+	}
+
+	h.clock = testEpoch.Add(testMax - time.Millisecond)
+	if _, err := h.use(cookie); err != nil {
+		t.Fatalf("just inside the absolute limit SessionFor = %v, want the session", err)
+	}
+	h.clock = testEpoch.Add(testMax)
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Fatalf("at the absolute limit, used 1ms ago, SessionFor = %v, want ErrNoSession", err)
+	}
+	if n := len(h.rows(t)); n != 0 {
+		t.Errorf("expired session left %d rows, want 0", n)
+	}
+}
+
+// A max with fractional seconds rounds the cookie Max-Age up, so the browser
+// keeps the cookie until the server-side absolute limit.
+func TestSessionCookieOutlivesFractionalMax(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	h.sessions.idle, h.sessions.max = 1500*time.Millisecond, 2500*time.Millisecond
+	_, cookie := h.signIn(t)
+	if cookie.MaxAge != 3 {
+		t.Errorf("session cookie MaxAge = %d, want 3", cookie.MaxAge)
+	}
+	if r := h.rows(t)[0]; !r.expires.Equal(testEpoch.Add(1500 * time.Millisecond)) {
+		t.Errorf("expires_at = %v, want %v", r.expires, testEpoch.Add(1500*time.Millisecond))
+	}
+
+	h.advance(time.Second)
+	if _, err := h.use(cookie); err != nil {
+		t.Fatalf("at 1s SessionFor = %v, want the session", err)
+	}
+	h.clock = testEpoch.Add(2500*time.Millisecond - time.Millisecond)
+	if _, err := h.use(cookie); err != nil {
+		t.Fatalf("just inside the absolute limit SessionFor = %v, want the session", err)
+	}
+	h.clock = testEpoch.Add(2500 * time.Millisecond)
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Errorf("at the absolute limit SessionFor = %v, want ErrNoSession", err)
+	}
+}
+
+// A lifetime near the largest accepted duration still yields a positive,
+// rounded-up cookie Max-Age rather than overflowing.
+func TestSessionCookieMaxAgeNearLargestMax(t *testing.T) {
+	t.Parallel()
+	largest, err := time.ParseDuration("2562047h47m16.854s")
+	if err != nil {
+		t.Fatal(err)
+	}
+	h := newSessionHarness(t)
+	h.sessions.max = largest
+	_, cookie := h.signIn(t)
+	if want := 9223372037; cookie.MaxAge != want {
+		t.Errorf("session cookie MaxAge = %d, want %d", cookie.MaxAge, want)
+	}
+}
+
+// A lifetime shortened by configuration applies to existing sessions even
+// though their stored expires_at is later.
+func TestSessionLifetimeChecksUseCurrentConfig(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+	h.sessions.idle = 24 * time.Hour
+	h.advance(24 * time.Hour)
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Errorf("past the shortened idle SessionFor = %v, want ErrNoSession", err)
+	}
+
+	_, cookie = h.signIn(t)
+	h.sessions.idle, h.sessions.max = 24*time.Hour, 48*time.Hour
+	for range 3 {
+		h.advance(12 * time.Hour)
+		if _, err := h.use(cookie); err != nil {
+			t.Fatalf("SessionFor = %v, want the session", err)
+		}
+	}
+	h.advance(12 * time.Hour)
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Errorf("past the shortened max SessionFor = %v, want ErrNoSession", err)
+	}
+
+	// Used recently and with expires_at still ahead, but older than a max
+	// shortened after that use: only the absolute check ends it.
+	h.sessions.idle, h.sessions.max = testIdle, testMax
+	_, cookie = h.signIn(t)
+	h.advance(10 * 24 * time.Hour)
+	if _, err := h.use(cookie); err != nil {
+		t.Fatalf("SessionFor = %v, want the session", err)
+	}
+	h.sessions.max = 10 * 24 * time.Hour
+	h.advance(time.Hour)
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Errorf("past a max shortened after the last use SessionFor = %v, want ErrNoSession", err)
+	}
+}
+
+func TestSessionForRejectsBadCookies(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	h.signIn(t)
+	for name, c := range map[string]*http.Cookie{
+		"missing":      nil,
+		"empty":        {Name: SessionCookieName, Value: ""},
+		"not base64":   {Name: SessionCookieName, Value: strings.Repeat("!", 43)},
+		"short":        {Name: SessionCookieName, Value: "AAAA"},
+		"unknown ID":   {Name: SessionCookieName, Value: randomToken()},
+		"other cookie": {Name: "mealquest_session", Value: randomToken()},
+	} {
+		if _, err := h.use(c); !errors.Is(err, ErrNoSession) {
+			t.Errorf("%s: SessionFor = %v, want ErrNoSession", name, err)
+		}
+	}
+	if n := len(h.rows(t)); n != 1 {
+		t.Errorf("sessions has %d rows, want the signed-in session only", n)
+	}
+}
+
+func (h *sessionHarness) logout(cookies ...*http.Cookie) *http.Response {
+	req := httptest.NewRequest(http.MethodPost, LogoutPath, nil)
+	for _, c := range cookies {
+		req.AddCookie(c)
+	}
+	rec := httptest.NewRecorder()
+	h.router.ServeHTTP(rec, req)
+	return rec.Result()
+}
+
+func TestLogout(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+	_, other := h.signIn(t)
+
+	resp := h.logout(cookie)
+	if resp.StatusCode != http.StatusSeeOther {
+		t.Fatalf("logout status = %d, want 303", resp.StatusCode)
+	}
+	want := h.provider.issuer() + "/end-session/"
+	if got := resp.Header.Get("Location"); got != want || h.auth.EndSessionURL() != want {
+		t.Errorf("logout redirect = %q, EndSessionURL = %q, want %q", got, h.auth.EndSessionURL(), want)
+	}
+	raw := sessionSetCookie(t, resp)
+	assertSessionCookieAttributes(t, raw)
+	if !strings.HasPrefix(raw, SessionCookieName+"=;") || !strings.Contains(raw, "Max-Age=0") {
+		t.Errorf("logout Set-Cookie = %q, want the cookie cleared", raw)
+	}
+
+	rows := h.rows(t)
+	if len(rows) != 1 || rows[0].idHash != sha256Hex(other.Value) {
+		t.Errorf("after logout sessions = %+v, want only the other session", rows)
+	}
+	if _, err := h.use(cookie); !errors.Is(err, ErrNoSession) {
+		t.Errorf("logged-out cookie: SessionFor = %v, want ErrNoSession", err)
+	}
+	if _, err := h.use(other); err != nil {
+		t.Errorf("other session: SessionFor = %v, want it untouched", err)
+	}
+}
+
+func TestLogoutWithoutSession(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	resp := h.logout()
+	if resp.StatusCode != http.StatusSeeOther || resp.Header.Get("Location") != h.provider.issuer()+"/end-session/" {
+		t.Errorf("logout = %d to %q, want 303 to the end session endpoint", resp.StatusCode, resp.Header.Get("Location"))
+	}
+	assertSessionCookieAttributes(t, sessionSetCookie(t, resp))
+}
+
+func TestLogoutIsPostOnly(t *testing.T) {
+	t.Parallel()
+	h := newSessionHarness(t)
+	_, cookie := h.signIn(t)
+	if resp := h.get(LogoutPath, cookie); resp.StatusCode != http.StatusMethodNotAllowed {
+		t.Errorf("GET %s status = %d, want 405", LogoutPath, resp.StatusCode)
+	}
+	if _, err := h.use(cookie); err != nil {
+		t.Errorf("after GET %s SessionFor = %v, want the session", LogoutPath, err)
+	}
+}
+
+func TestLogoutSessionError(t *testing.T) {
+	t.Parallel()
+	h := newHarness(t)
+	h.sessions.err = errors.New("database down")
+	rec := httptest.NewRecorder()
+	h.router.ServeHTTP(rec, httptest.NewRequest(http.MethodPost, LogoutPath, nil))
+	if rec.Code != http.StatusInternalServerError {
+		t.Errorf("logout status = %d, want 500", rec.Code)
+	}
+}
+
+func TestNewRequiresEndSessionEndpoint(t *testing.T) {
+	t.Parallel()
+	p := newFakeProvider(t)
+	p.discoveryOverrides = map[string]any{"end_session_endpoint": nil}
+	_, err := New(context.Background(), Config{
+		Issuer:        p.issuer(),
+		ClientID:      testClientID,
+		ClientSecret:  testClientSecret,
+		PublicURL:     testPublicURL,
+		SecretKey:     []byte("k"),
+		AllowedGroups: testAllowedGroups,
+	}, &memorySessions{}, slog.New(slog.DiscardHandler))
+	if err == nil || !strings.Contains(err.Error(), "end session endpoint") {
+		t.Errorf("New error = %v, want the missing end session endpoint named", err)
+	}
+}
+
+func TestNewSessionManagerValidates(t *testing.T) {
+	t.Parallel()
+	db := &store.Store{}
+	for _, tc := range []struct {
+		name      string
+		db        *store.Store
+		idle, max time.Duration
+	}{
+		{"nil store", nil, time.Hour, time.Hour},
+		{"zero idle", db, 0, time.Hour},
+		{"negative max", db, time.Hour, -time.Hour},
+		{"max below idle", db, 2 * time.Hour, time.Hour},
+	} {
+		if _, err := NewSessionManager(tc.db, tc.idle, tc.max); err == nil {
+			t.Errorf("%s: NewSessionManager succeeded", tc.name)
+		}
+	}
+}

internal/config/config.go

@@ -11,6 +11,9 @@ import (
 	"strconv"
 	"strings"
 	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/forwarded"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/secureurl"
 )
 
 // Environment variable names.
@@ -20,6 +23,25 @@ const (
 	EnvDataDir         = "MEALQUEST_DATA_DIR"
 	EnvShutdownTimeout = "MEALQUEST_SHUTDOWN_TIMEOUT"
 	EnvSecretKeyFile   = "MEALQUEST_SECRET_KEY_FILE"
+
+	EnvOIDCIssuer           = "MEALQUEST_OIDC_ISSUER"
+	EnvOIDCClientID         = "MEALQUEST_OIDC_CLIENT_ID"
+	EnvOIDCClientSecretFile = "MEALQUEST_OIDC_CLIENT_SECRET_FILE"
+	EnvOIDCAllowedGroups    = "MEALQUEST_OIDC_ALLOWED_GROUPS"
+
+	EnvSessionIdle = "MEALQUEST_SESSION_IDLE"
+	EnvSessionMax  = "MEALQUEST_SESSION_MAX"
+
+	EnvTrustedProxy = "MEALQUEST_TRUSTED_PROXY"
+
+	EnvDefaultTZ = "MEALQUEST_DEFAULT_TZ"
+)
+
+// Session lifetime defaults (D-004): long enough that the kitchen tablet
+// stays signed in.
+const (
+	DefaultSessionIdle = 720 * time.Hour  // 30 days
+	DefaultSessionMax  = 4320 * time.Hour // 180 days
 )
 
 // Config is the validated service configuration.
@@ -29,6 +51,28 @@ type Config struct {
 	DataDir         string
 	ShutdownTimeout time.Duration
 	SecretKey       Secret
+
+	// OIDCIssuer is the Authentik issuer URL used for discovery.
+	OIDCIssuer       *url.URL
+	OIDCClientID     string
+	OIDCClientSecret Secret
+	// OIDCAllowedGroups lists the groups whose members may sign in.
+	OIDCAllowedGroups []string
+
+	// SessionIdle ends a session left unused this long.
+	SessionIdle time.Duration
+	// SessionMax ends every session this long after sign-in, used or not.
+	SessionMax time.Duration
+
+	// TrustedProxy lists the reverse proxies whose X-Forwarded-For and
+	// X-Forwarded-Proto headers are honoured. Empty trusts no peer.
+	TrustedProxy forwarded.Trusted
+
+	// DefaultTZ is the IANA zone the household settings are created with on
+	// first boot. It is optional and not validated here: boot requires and
+	// validates it only while the settings do not exist yet, and ignores it
+	// once they do. Empty when unset.
+	DefaultTZ string
 }
 
 // PublicOrigin returns the scheme and host of PublicURL, the only parts of it
@@ -47,10 +91,25 @@ func load(lookup func(string) (string, bool)) (Config, error) {
 	r := reader{lookup: lookup}
 	cfg := Config{
 		HTTPAddr:        r.listenAddr(EnvHTTPAddr),
-		PublicURL:       r.httpURL(EnvPublicURL),
+		PublicURL:       r.secureURL(EnvPublicURL),
 		DataDir:         r.dir(EnvDataDir),
 		ShutdownTimeout: r.duration(EnvShutdownTimeout),
 		SecretKey:       r.secretFile(EnvSecretKeyFile),
+
+		OIDCIssuer:        r.secureURL(EnvOIDCIssuer),
+		OIDCClientID:      r.str(EnvOIDCClientID),
+		OIDCClientSecret:  r.secretFile(EnvOIDCClientSecretFile),
+		OIDCAllowedGroups: r.list(EnvOIDCAllowedGroups),
+
+		SessionIdle: r.sessionDuration(EnvSessionIdle, DefaultSessionIdle),
+		SessionMax:  r.sessionDuration(EnvSessionMax, DefaultSessionMax),
+
+		TrustedProxy: r.trustedProxy(EnvTrustedProxy),
+
+		DefaultTZ: r.optional(EnvDefaultTZ),
+	}
+	if cfg.SessionIdle > 0 && cfg.SessionMax > 0 && cfg.SessionMax < cfg.SessionIdle {
+		r.fail(EnvSessionMax, "must be at least %s (%s)", EnvSessionIdle, cfg.SessionIdle)
 	}
 	if len(r.problems) > 0 {
 		return Config{}, &Error{Problems: r.problems}
@@ -114,6 +173,41 @@ func (r *reader) required(name string) (string, bool) {
 	return v, true
 }
 
+func (r *reader) str(name string) string {
+	v, _ := r.required(name)
+	return v
+}
+
+// list parses a comma-separated list. Every entry must be non-empty after
+// trimming spaces.
+func (r *reader) list(name string) []string {
+	v, ok := r.required(name)
+	if !ok {
+		return nil
+	}
+	items := strings.Split(v, ",")
+	for i, item := range items {
+		items[i] = strings.TrimSpace(item)
+		if items[i] == "" {
+			r.fail(name, "empty entry in comma-separated list %q", v)
+			return nil
+		}
+	}
+	return items
+}
+
+// trustedProxy parses an optional comma-separated list of IP addresses and
+// CIDR prefixes with forwarded.ParseTrusted. Unset or blank trusts no peer.
+func (r *reader) trustedProxy(name string) forwarded.Trusted {
+	v, _ := r.lookup(name)
+	t, err := forwarded.ParseTrusted(v)
+	if err != nil {
+		r.fail(name, "%v", err)
+		return nil
+	}
+	return t
+}
+
 func (r *reader) listenAddr(name string) string {
 	v, ok := r.required(name)
 	if !ok {
@@ -155,15 +249,21 @@ func validHostname(h string) bool {
 	return true
 }
 
-func (r *reader) httpURL(name string) *url.URL {
+// secureURL reads an absolute URL that must pass secureurl.Check: https://,
+// or http:// to a loopback host only.
+func (r *reader) secureURL(name string) *url.URL {
 	v, ok := r.required(name)
 	if !ok {
 		return nil
 	}
 	// The value is never echoed: it may carry credentials.
 	u, err := url.Parse(v)
-	if err != nil || (u.Scheme != "http" && u.Scheme != "https") || u.Hostname() == "" {
-		r.fail(name, "invalid URL (want absolute http:// or https:// URL)")
+	if err != nil {
+		r.fail(name, "invalid URL (want absolute https:// URL)")
+		return nil
+	}
+	if err := secureurl.Check(u); err != nil {
+		r.fail(name, "invalid URL: %v", err)
 		return nil
 	}
 	if u.User != nil {
@@ -195,6 +295,32 @@ func (r *reader) duration(name string) time.Duration {
 	if !ok {
 		return 0
 	}
+	return r.parseDuration(name, v)
+}
+
+// optionalDuration returns def when name is unset. A set value, even an empty
+// one, must be a valid positive duration.
+func (r *reader) optionalDuration(name string, def time.Duration) time.Duration {
+	v, ok := r.lookup(name)
+	if !ok {
+		return def
+	}
+	return r.parseDuration(name, v)
+}
+
+// sessionDuration is optionalDuration restricted to whole milliseconds:
+// session expiry is stored as a store.Timestamp, which keeps millisecond
+// precision, so a finer duration could not be honoured.
+func (r *reader) sessionDuration(name string, def time.Duration) time.Duration {
+	d := r.optionalDuration(name, def)
+	if d%time.Millisecond != 0 {
+		r.fail(name, "duration must be a whole number of milliseconds, got %s", d)
+		return 0
+	}
+	return d
+}
+
+func (r *reader) parseDuration(name, v string) time.Duration {
 	d, err := time.ParseDuration(v)
 	if err != nil {
 		r.fail(name, "invalid duration %q (want e.g. 10s, 1m)", v)
@@ -207,6 +333,12 @@ func (r *reader) duration(name string) time.Duration {
 	return d
 }
 
+// optional returns the variable's value, or "" when it is unset.
+func (r *reader) optional(name string) string {
+	v, _ := r.lookup(name)
+	return v
+}
+
 // secretFile reads a secret from the file named by name, which must end in
 // _FILE. Setting the secret inline (name without _FILE) is rejected.
 func (r *reader) secretFile(name string) Secret {

internal/config/config_test.go

@@ -3,13 +3,17 @@ package config
 import (
 	"errors"
 	"fmt"
+	"net/netip"
 	"net/url"
 	"os"
 	"path/filepath"
+	"reflect"
 	"slices"
 	"strings"
 	"testing"
 	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/forwarded"
 )
 
 func TestLoad(t *testing.T) {
@@ -21,6 +25,10 @@ func TestLoad(t *testing.T) {
 		t.Fatal(err)
 	}
 	unreadablePath := filepath.Join(dir, "missing_secret")
+	clientSecretPath := filepath.Join(dir, "oidc_client_secret")
+	if err := os.WriteFile(clientSecretPath, []byte("client-s3cret\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
 	emptyPath := filepath.Join(dir, "empty_secret")
 	if err := os.WriteFile(emptyPath, []byte("\n"), 0o600); err != nil {
 		t.Fatal(err)
@@ -33,6 +41,11 @@ func TestLoad(t *testing.T) {
 			EnvDataDir:         dir,
 			EnvShutdownTimeout: "15s",
 			EnvSecretKeyFile:   secretPath,
+
+			EnvOIDCIssuer:           "https://auth.example.com/application/o/mealquest/",
+			EnvOIDCClientID:         "mealquest",
+			EnvOIDCClientSecretFile: clientSecretPath,
+			EnvOIDCAllowedGroups:    "mealquest-admin",
 		}
 	}
 	with := func(changes map[string]string, unset ...string) map[string]string {
@@ -55,6 +68,16 @@ func TestLoad(t *testing.T) {
 			name: "all required vars present",
 			env:  valid(),
 		},
+		{
+			name: "default time zone set",
+			env:  with(map[string]string{EnvDefaultTZ: "America/New_York"}),
+		},
+		{
+			// Validated only when seeding the household settings, so a
+			// stale value cannot stop a boot that no longer uses it.
+			name: "default time zone not an IANA zone",
+			env:  with(map[string]string{EnvDefaultTZ: "Mars/Olympus_Mons"}),
+		},
 		{
 			name:    "one missing",
 			env:     with(nil, EnvHTTPAddr),
@@ -70,6 +93,7 @@ func TestLoad(t *testing.T) {
 			env:  map[string]string{},
 			badVars: []string{
 				EnvHTTPAddr, EnvPublicURL, EnvDataDir, EnvShutdownTimeout, EnvSecretKeyFile,
+				EnvOIDCIssuer, EnvOIDCClientID, EnvOIDCClientSecretFile, EnvOIDCAllowedGroups,
 			},
 		},
 		{
@@ -139,6 +163,24 @@ func TestLoad(t *testing.T) {
 			env:     with(map[string]string{EnvPublicURL: "http://:8080"}),
 			badVars: []string{EnvPublicURL},
 		},
+		{
+			name:    "plain HTTP public URL on a remote host",
+			env:     with(map[string]string{EnvPublicURL: "http://meals.example.com"}),
+			badVars: []string{EnvPublicURL},
+		},
+		{
+			name:    "plain HTTP public URL on a non-loopback IP",
+			env:     with(map[string]string{EnvPublicURL: "http://192.168.1.20:8080"}),
+			badVars: []string{EnvPublicURL},
+		},
+		{
+			name: "plain HTTP public URL on 127.0.0.1",
+			env:  with(map[string]string{EnvPublicURL: "http://127.0.0.1:8080"}),
+		},
+		{
+			name: "plain HTTP public URL on [::1]",
+			env:  with(map[string]string{EnvPublicURL: "http://[::1]:8080"}),
+		},
 		{
 			name:    "relative public URL",
 			env:     with(map[string]string{EnvPublicURL: "meals.example.com"}),
@@ -169,6 +211,143 @@ func TestLoad(t *testing.T) {
 			env:     with(map[string]string{"MEALQUEST_SECRET_KEY": "inline"}),
 			badVars: []string{"MEALQUEST_SECRET_KEY"},
 		},
+		{
+			name:    "inline OIDC client secret rejected",
+			env:     with(map[string]string{"MEALQUEST_OIDC_CLIENT_SECRET": "inline"}),
+			badVars: []string{"MEALQUEST_OIDC_CLIENT_SECRET"},
+		},
+		{
+			name:    "unreadable OIDC client secret file",
+			env:     with(map[string]string{EnvOIDCClientSecretFile: unreadablePath}),
+			badVars: []string{EnvOIDCClientSecretFile},
+		},
+		{
+			name:    "relative OIDC issuer",
+			env:     with(map[string]string{EnvOIDCIssuer: "auth.example.com"}),
+			badVars: []string{EnvOIDCIssuer},
+		},
+		{
+			name:    "non-http OIDC issuer",
+			env:     with(map[string]string{EnvOIDCIssuer: "ftp://auth.example.com"}),
+			badVars: []string{EnvOIDCIssuer},
+		},
+		{
+			name:    "plain HTTP OIDC issuer on a remote host",
+			env:     with(map[string]string{EnvOIDCIssuer: "http://auth.example.com/application/o/mealquest/"}),
+			badVars: []string{EnvOIDCIssuer},
+		},
+		{
+			name: "plain HTTP OIDC issuer on localhost",
+			env:  with(map[string]string{EnvOIDCIssuer: "http://localhost:9000/application/o/mealquest/"}),
+		},
+		{
+			name: "several allowed groups",
+			env:  with(map[string]string{EnvOIDCAllowedGroups: "mealquest-admin, family"}),
+		},
+		{
+			name:    "empty allowed group entry",
+			env:     with(map[string]string{EnvOIDCAllowedGroups: "mealquest-admin,,family"}),
+			badVars: []string{EnvOIDCAllowedGroups},
+		},
+		{
+			name:    "trailing comma in allowed groups",
+			env:     with(map[string]string{EnvOIDCAllowedGroups: "mealquest-admin,"}),
+			badVars: []string{EnvOIDCAllowedGroups},
+		},
+		{
+			name:    "blank OIDC client ID",
+			env:     with(map[string]string{EnvOIDCClientID: "  "}),
+			badVars: []string{EnvOIDCClientID},
+		},
+		{
+			name: "session lifetimes set",
+			env:  with(map[string]string{EnvSessionIdle: "24h", EnvSessionMax: "48h"}),
+		},
+		{
+			name: "session max equal to idle",
+			env:  with(map[string]string{EnvSessionIdle: "24h", EnvSessionMax: "24h"}),
+		},
+		{
+			name:    "invalid session idle",
+			env:     with(map[string]string{EnvSessionIdle: "a month"}),
+			badVars: []string{EnvSessionIdle},
+		},
+		{
+			name:    "empty session idle",
+			env:     with(map[string]string{EnvSessionIdle: ""}),
+			badVars: []string{EnvSessionIdle},
+		},
+		{
+			name:    "non-positive session max",
+			env:     with(map[string]string{EnvSessionMax: "-1h"}),
+			badVars: []string{EnvSessionMax},
+		},
+		{
+			name: "whole-millisecond session lifetimes",
+			env:  with(map[string]string{EnvSessionIdle: "1ms", EnvSessionMax: "2ms"}),
+		},
+		{
+			name:    "sub-millisecond session idle",
+			env:     with(map[string]string{EnvSessionIdle: "1500us", EnvSessionMax: "2ms"}),
+			badVars: []string{EnvSessionIdle},
+		},
+		{
+			name:    "sub-millisecond session max",
+			env:     with(map[string]string{EnvSessionIdle: "1ms", EnvSessionMax: "1ms500us"}),
+			badVars: []string{EnvSessionMax},
+		},
+		{
+			name:    "session max below idle",
+			env:     with(map[string]string{EnvSessionIdle: "48h", EnvSessionMax: "24h"}),
+			badVars: []string{EnvSessionMax},
+		},
+		{
+			name:    "session max below default idle",
+			env:     with(map[string]string{EnvSessionMax: "719h"}),
+			badVars: []string{EnvSessionMax},
+		},
+		{
+			name: "trusted proxy IP",
+			env:  with(map[string]string{EnvTrustedProxy: "10.60.1.33"}),
+		},
+		{
+			name: "trusted proxy IPs and CIDRs",
+			env:  with(map[string]string{EnvTrustedProxy: "10.60.1.33, 172.16.0.0/12,2001:db8::/32,::1"}),
+		},
+		{
+			name: "blank trusted proxy trusts no peer",
+			env:  with(map[string]string{EnvTrustedProxy: "  "}),
+		},
+		{
+			name:    "trusted proxy not an IP",
+			env:     with(map[string]string{EnvTrustedProxy: "traefik"}),
+			badVars: []string{EnvTrustedProxy},
+		},
+		{
+			name:    "trusted proxy invalid CIDR",
+			env:     with(map[string]string{EnvTrustedProxy: "10.60.1.0/33"}),
+			badVars: []string{EnvTrustedProxy},
+		},
+		{
+			name:    "trusted proxy CIDR with host bits",
+			env:     with(map[string]string{EnvTrustedProxy: "10.60.1.33/24"}),
+			badVars: []string{EnvTrustedProxy},
+		},
+		{
+			name:    "trusted proxy empty entry",
+			env:     with(map[string]string{EnvTrustedProxy: "10.60.1.33,,10.60.1.34"}),
+			badVars: []string{EnvTrustedProxy},
+		},
+		{
+			name:    "trusted proxy trusting everyone",
+			env:     with(map[string]string{EnvTrustedProxy: "0.0.0.0/0"}),
+			badVars: []string{EnvTrustedProxy},
+		},
+		{
+			name:    "trusted proxy with port",
+			env:     with(map[string]string{EnvTrustedProxy: "10.60.1.33:443"}),
+			badVars: []string{EnvTrustedProxy},
+		},
 		{
 			name: "several invalid values are all named",
 			env: with(map[string]string{
@@ -211,7 +390,7 @@ func TestLoad(t *testing.T) {
 					t.Errorf("error message %q does not name %s", err.Error(), v)
 				}
 			}
-			if cfg != (Config{}) {
+			if !reflect.ValueOf(cfg).IsZero() {
 				t.Errorf("load() returned non-zero Config alongside error: %+v", cfg)
 			}
 		})
@@ -226,12 +405,23 @@ func TestLoadValues(t *testing.T) {
 	if err := os.WriteFile(secretPath, []byte("s3cret-value\r\n"), 0o600); err != nil {
 		t.Fatal(err)
 	}
+	clientSecretPath := filepath.Join(dir, "oidc_client_secret")
+	if err := os.WriteFile(clientSecretPath, []byte("client-s3cret\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
 	env := map[string]string{
 		EnvHTTPAddr:        "127.0.0.1:9000",
 		EnvPublicURL:       "http://localhost:9000",
 		EnvDataDir:         dir,
 		EnvShutdownTimeout: "1m30s",
 		EnvSecretKeyFile:   secretPath,
+
+		EnvOIDCIssuer:           "https://auth.example.com/application/o/mealquest/",
+		EnvOIDCClientID:         "mealquest",
+		EnvOIDCClientSecretFile: clientSecretPath,
+		EnvOIDCAllowedGroups:    " mealquest-admin ,family",
+
+		EnvDefaultTZ: "Europe/London",
 	}
 	cfg, err := load(func(k string) (string, bool) { v, ok := env[k]; return v, ok })
 	if err != nil {
@@ -253,6 +443,43 @@ func TestLoadValues(t *testing.T) {
 	if cfg.SecretKey.Reveal() != "s3cret-value" {
 		t.Errorf("SecretKey.Reveal() = %q, want trailing newline trimmed", cfg.SecretKey.Reveal())
 	}
+	if got, want := cfg.OIDCIssuer.String(), "https://auth.example.com/application/o/mealquest/"; got != want {
+		t.Errorf("OIDCIssuer = %q, want %q", got, want)
+	}
+	if cfg.OIDCClientID != "mealquest" {
+		t.Errorf("OIDCClientID = %q", cfg.OIDCClientID)
+	}
+	if cfg.OIDCClientSecret.Reveal() != "client-s3cret" {
+		t.Errorf("OIDCClientSecret.Reveal() = %q", cfg.OIDCClientSecret.Reveal())
+	}
+	if want := []string{"mealquest-admin", "family"}; !slices.Equal(cfg.OIDCAllowedGroups, want) {
+		t.Errorf("OIDCAllowedGroups = %q, want %q", cfg.OIDCAllowedGroups, want)
+	}
+	if cfg.SessionIdle != 720*time.Hour || cfg.SessionMax != 4320*time.Hour {
+		t.Errorf("SessionIdle, SessionMax = %v, %v, want defaults 720h, 4320h", cfg.SessionIdle, cfg.SessionMax)
+	}
+
+	if cfg.TrustedProxy != nil {
+		t.Errorf("TrustedProxy = %v, want none when unset", cfg.TrustedProxy)
+	}
+
+	env[EnvSessionIdle] = "12h"
+	env[EnvSessionMax] = "36h"
+	env[EnvTrustedProxy] = "10.60.1.33, 172.16.0.0/12"
+	cfg, err = load(func(k string) (string, bool) { v, ok := env[k]; return v, ok })
+	if err != nil {
+		t.Fatalf("load() error = %v", err)
+	}
+	if cfg.SessionIdle != 12*time.Hour || cfg.SessionMax != 36*time.Hour {
+		t.Errorf("SessionIdle, SessionMax = %v, %v, want 12h, 36h", cfg.SessionIdle, cfg.SessionMax)
+	}
+	want := forwarded.Trusted{netip.MustParsePrefix("10.60.1.33/32"), netip.MustParsePrefix("172.16.0.0/12")}
+	if !slices.Equal(cfg.TrustedProxy, want) {
+		t.Errorf("TrustedProxy = %v, want %v", cfg.TrustedProxy, want)
+	}
+	if cfg.DefaultTZ != "Europe/London" {
+		t.Errorf("DefaultTZ = %q, want Europe/London", cfg.DefaultTZ)
+	}
 }
 
 func TestSecretRedacted(t *testing.T) {
@@ -260,7 +487,7 @@ func TestSecretRedacted(t *testing.T) {
 
 	s := Secret{value: "s3cret-value"}
 	for _, format := range []string{"%v", "%s", "%+v", "%#v"} {
-		cfg := Config{SecretKey: s}
+		cfg := Config{SecretKey: s, OIDCClientSecret: s}
 		for _, out := range []string{fmt.Sprintf(format, s), fmt.Sprintf(format, cfg)} {
 			if strings.Contains(out, "s3cret-value") {
 				t.Errorf("format %s leaked secret: %s", format, out)

internal/db/db.go

@@ -0,0 +1,31 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+type DBTX interface {
+	ExecContext(context.Context, string, ...interface{}) (sql.Result, error)
+	PrepareContext(context.Context, string) (*sql.Stmt, error)
+	QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error)
+	QueryRowContext(context.Context, string, ...interface{}) *sql.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx *sql.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

internal/db/db_test.go

@@ -0,0 +1,564 @@
+package db_test
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"reflect"
+	"testing"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/db"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+const (
+	created = "2026-10-03T12:00:00.000Z"
+	updated = "2026-10-04T12:00:00.000Z"
+)
+
+// openQueries returns queries on the writer of a freshly migrated database
+// in a temp directory.
+func openQueries(t *testing.T) (*store.Store, *db.Queries) {
+	t.Helper()
+	ctx := context.Background()
+	s, err := store.Open(ctx, t.TempDir())
+	if err != nil {
+		t.Fatalf("Open: %v", err)
+	}
+	t.Cleanup(func() {
+		if err := s.Close(); err != nil {
+			t.Errorf("Close: %v", err)
+		}
+	})
+	if err := store.Migrate(ctx, s.Writer, migrations.FS); err != nil {
+		t.Fatalf("Migrate: %v", err)
+	}
+	return s, db.New(s.Writer)
+}
+
+func str(s string) sql.NullString { return sql.NullString{String: s, Valid: true} }
+func num(n int64) sql.NullInt64   { return sql.NullInt64{Int64: n, Valid: true} }
+
+func mustNoRows(t *testing.T, what string, err error) {
+	t.Helper()
+	if !errors.Is(err, sql.ErrNoRows) {
+		t.Fatalf("%s: got %v, want sql.ErrNoRows", what, err)
+	}
+}
+
+func createPhoto(t *testing.T, q *db.Queries, sha string) db.Photo {
+	t.Helper()
+	p, err := q.CreatePhoto(context.Background(), db.CreatePhotoParams{
+		ID:        store.NewID(),
+		SourceUrl: "https://example.com/" + sha + ".jpg",
+		LocalPath: "photos/" + sha + ".jpg",
+		Width:     800,
+		Height:    600,
+		Sha256:    sha,
+		FetchedAt: created,
+		CreatedAt: created,
+		UpdatedAt: created,
+	})
+	if err != nil {
+		t.Fatalf("CreatePhoto: %v", err)
+	}
+	return p
+}
+
+func upsertRecipe(t *testing.T, q *db.Queries, id, url, title, at string) db.Recipe {
+	t.Helper()
+	r, err := q.UpsertRecipe(context.Background(), db.UpsertRecipeParams{
+		ID:           id,
+		SourceUrl:    url,
+		SiteName:     str("Example"),
+		Title:        title,
+		TotalMinutes: num(30),
+		PrepMinutes:  num(10),
+		CookMinutes:  num(20),
+		Yield:        str("4 servings"),
+		RawJsonld:    `{"@type":"Recipe"}`,
+		FetchedAt:    at,
+		CreatedAt:    at,
+		UpdatedAt:    at,
+	})
+	if err != nil {
+		t.Fatalf("UpsertRecipe: %v", err)
+	}
+	return r
+}
+
+func TestDinners(t *testing.T) {
+	ctx := context.Background()
+	_, q := openQueries(t)
+	recipe := upsertRecipe(t, q, store.NewID(), "https://example.com/tacos", "Tacos", created)
+	photo := createPhoto(t, q, "aa11")
+
+	create := db.CreateDinnerParams{
+		ID:              store.NewID(),
+		Name:            "Taco Tuesday",
+		NormalizedName:  "taco tuesday",
+		Status:          "regular",
+		Origin:          "regular",
+		Method:          str("stovetop"),
+		MinutesTotal:    num(30),
+		Difficulty:      str("easy"),
+		Cuisine:         str("Mexican"),
+		IsFavorite:      0,
+		RecipeID:        str(recipe.ID),
+		PhotoID:         str(photo.ID),
+		GroundingStatus: "grounded",
+		UpdatedBy:       str("alex@example.com"),
+		CreatedAt:       created,
+		UpdatedAt:       created,
+	}
+	want := db.Dinner(create)
+	got, err := q.CreateDinner(ctx, create)
+	if err != nil {
+		t.Fatalf("CreateDinner: %v", err)
+	}
+	if got != want {
+		t.Fatalf("CreateDinner returned %+v, want %+v", got, want)
+	}
+	if got, err = q.GetDinner(ctx, create.ID); err != nil || got != want {
+		t.Fatalf("GetDinner = %+v, %v; want %+v", got, err, want)
+	}
+	_, err = q.GetDinner(ctx, "missing")
+	mustNoRows(t, "GetDinner missing", err)
+
+	// Second dinner sorts before the first by normalized name, in a
+	// different status so the status filter is exercised.
+	other, err := q.CreateDinner(ctx, db.CreateDinnerParams{
+		ID:              store.NewID(),
+		Name:            "Apple Pork Chops",
+		NormalizedName:  "apple pork chops",
+		Status:          "quest_log",
+		Origin:          "side_quest",
+		GroundingStatus: "pending",
+		CreatedAt:       created,
+		UpdatedAt:       created,
+	})
+	if err != nil {
+		t.Fatalf("CreateDinner other: %v", err)
+	}
+	third, err := q.CreateDinner(ctx, db.CreateDinnerParams{
+		ID:              store.NewID(),
+		Name:            "Beef Stew",
+		NormalizedName:  "beef stew",
+		Status:          "regular",
+		Origin:          "manual",
+		GroundingStatus: "manual",
+		CreatedAt:       created,
+		UpdatedAt:       created,
+	})
+	if err != nil {
+		t.Fatalf("CreateDinner third: %v", err)
+	}
+	listIDs := func(status string) []string {
+		t.Helper()
+		ds, err := q.ListDinnersByStatus(ctx, status)
+		if err != nil {
+			t.Fatalf("ListDinnersByStatus(%s): %v", status, err)
+		}
+		ids := []string{}
+		for _, d := range ds {
+			ids = append(ids, d.ID)
+		}
+		return ids
+	}
+	assertIDs(t, "regular", listIDs("regular"), third.ID, create.ID)
+	assertIDs(t, "quest_log", listIDs("quest_log"), other.ID)
+	assertIDs(t, "tried", listIDs("tried"))
+
+	update := db.UpdateDinnerParams{
+		ID:              create.ID,
+		Name:            "Fish Tacos",
+		NormalizedName:  "fish tacos",
+		Status:          "tried",
+		Origin:          "side_quest",
+		Method:          str("grill"),
+		MinutesTotal:    num(25),
+		Difficulty:      str("medium"),
+		Cuisine:         sql.NullString{},
+		RecipeID:        sql.NullString{},
+		PhotoID:         str(photo.ID),
+		GroundingStatus: "failed",
+		UpdatedBy:       str("sam@example.com"),
+		UpdatedAt:       updated,
+	}
+	got, err = q.UpdateDinner(ctx, update)
+	if err != nil {
+		t.Fatalf("UpdateDinner: %v", err)
+	}
+	want = db.Dinner{
+		ID: create.ID, Name: update.Name, NormalizedName: update.NormalizedName,
+		Status: update.Status, Origin: update.Origin, Method: update.Method,
+		MinutesTotal: update.MinutesTotal, Difficulty: update.Difficulty,
+		Cuisine: update.Cuisine, IsFavorite: 0, RecipeID: update.RecipeID,
+		PhotoID: update.PhotoID, GroundingStatus: update.GroundingStatus,
+		UpdatedBy: update.UpdatedBy, CreatedAt: created, UpdatedAt: updated,
+	}
+	if got != want {
+		t.Fatalf("UpdateDinner returned %+v, want %+v", got, want)
+	}
+	if got, err = q.GetDinner(ctx, create.ID); err != nil || got != want {
+		t.Fatalf("GetDinner after update = %+v, %v; want %+v", got, err, want)
+	}
+	update.ID = "missing"
+	_, err = q.UpdateDinner(ctx, update)
+	mustNoRows(t, "UpdateDinner missing", err)
+
+	got, err = q.SetDinnerFavorite(ctx, db.SetDinnerFavoriteParams{
+		ID: create.ID, IsFavorite: 1, UpdatedBy: str("alex@example.com"), UpdatedAt: updated,
+	})
+	if err != nil {
+		t.Fatalf("SetDinnerFavorite: %v", err)
+	}
+	want.IsFavorite, want.UpdatedBy = 1, str("alex@example.com")
+	if got != want {
+		t.Fatalf("SetDinnerFavorite returned %+v, want %+v", got, want)
+	}
+	got, err = q.SetDinnerFavorite(ctx, db.SetDinnerFavoriteParams{
+		ID: create.ID, IsFavorite: 0, UpdatedBy: str("sam@example.com"), UpdatedAt: updated,
+	})
+	if err != nil || got.IsFavorite != 0 || got.UpdatedBy != str("sam@example.com") {
+		t.Fatalf("SetDinnerFavorite off = %+v, %v", got, err)
+	}
+	_, err = q.SetDinnerFavorite(ctx, db.SetDinnerFavoriteParams{ID: "missing", IsFavorite: 1, UpdatedAt: updated})
+	mustNoRows(t, "SetDinnerFavorite missing", err)
+
+	const archivedAt = "2026-10-05T12:00:00.000Z"
+	got, err = q.ArchiveDinner(ctx, db.ArchiveDinnerParams{
+		ID: create.ID, UpdatedBy: str("alex@example.com"), UpdatedAt: archivedAt,
+	})
+	if err != nil {
+		t.Fatalf("ArchiveDinner: %v", err)
+	}
+	want.IsFavorite, want.Status, want.UpdatedBy, want.UpdatedAt = 0, "archived", str("alex@example.com"), archivedAt
+	if got != want {
+		t.Fatalf("ArchiveDinner returned %+v, want %+v", got, want)
+	}
+	assertIDs(t, "archived", listIDs("archived"), create.ID)
+	assertIDs(t, "tried after archive", listIDs("tried"))
+	_, err = q.ArchiveDinner(ctx, db.ArchiveDinnerParams{ID: "missing", UpdatedAt: archivedAt})
+	mustNoRows(t, "ArchiveDinner missing", err)
+}
+
+func assertIDs(t *testing.T, what string, got []string, want ...string) {
+	t.Helper()
+	if len(got) != len(want) {
+		t.Fatalf("%s: got ids %v, want %v", what, got, want)
+	}
+	for i := range got {
+		if got[i] != want[i] {
+			t.Fatalf("%s: got ids %v, want %v", what, got, want)
+		}
+	}
+}
+
+func TestRecipeUpsertWithIngredientsAndSteps(t *testing.T) {
+	ctx := context.Background()
+	s, q := openQueries(t)
+	const url = "https://example.com/chili"
+
+	_, err := q.GetRecipeBySourceURL(ctx, url)
+	mustNoRows(t, "GetRecipeBySourceURL before insert", err)
+
+	// saveRecipe is how a caller stores a fetched recipe: upsert by
+	// source_url, then replace the children, all in one transaction.
+	saveRecipe := func(title, at string, ingredients, steps []string) db.Recipe {
+		t.Helper()
+		var r db.Recipe
+		err := s.WithTx(ctx, func(tx *sql.Tx) error {
+			qtx := q.WithTx(tx)
+			var err error
+			r, err = qtx.UpsertRecipe(ctx, db.UpsertRecipeParams{
+				ID: store.NewID(), SourceUrl: url, SiteName: str("Example"), Title: title,
+				TotalMinutes: num(60), RawJsonld: `{"name":"` + title + `"}`,
+				FetchedAt: at, CreatedAt: at, UpdatedAt: at,
+			})
+			if err != nil {
+				return err
+			}
+			if err := qtx.DeleteRecipeIngredients(ctx, r.ID); err != nil {
+				return err
+			}
+			if err := qtx.DeleteRecipeSteps(ctx, r.ID); err != nil {
+				return err
+			}
+			for i, text := range ingredients {
+				if err := qtx.CreateRecipeIngredient(ctx, db.CreateRecipeIngredientParams{
+					ID: store.NewID(), RecipeID: r.ID, Position: int64(i), RawText: text,
+					Name: str(text), Qty: str("1"), Unit: str("cup"), Note: sql.NullString{},
+					CreatedAt: at, UpdatedAt: at,
+				}); err != nil {
+					return err
+				}
+			}
+			for i, text := range steps {
+				if err := qtx.CreateRecipeStep(ctx, db.CreateRecipeStepParams{
+					ID: store.NewID(), RecipeID: r.ID, Position: int64(i), Text: text,
+					CreatedAt: at, UpdatedAt: at,
+				}); err != nil {
+					return err
+				}
+			}
+			return nil
+		})
+		if err != nil {
+			t.Fatalf("save recipe %q: %v", title, err)
+		}
+		return r
+	}
+	assertRecipe := func(id, title, createdAt, updatedAt string, ingredients, steps []string) {
+		t.Helper()
+		r, err := q.GetRecipe(ctx, id)
+		if err != nil {
+			t.Fatalf("GetRecipe: %v", err)
+		}
+		if r.Title != title || r.SourceUrl != url || r.CreatedAt != createdAt || r.UpdatedAt != updatedAt || r.FetchedAt != updatedAt {
+			t.Fatalf("GetRecipe = %+v; want title %q, created %s, updated %s", r, title, createdAt, updatedAt)
+		}
+		byURL, err := q.GetRecipeBySourceURL(ctx, url)
+		if err != nil || byURL != r {
+			t.Fatalf("GetRecipeBySourceURL = %+v, %v; want %+v", byURL, err, r)
+		}
+		ings, err := q.ListRecipeIngredients(ctx, id)
+		if err != nil {
+			t.Fatalf("ListRecipeIngredients: %v", err)
+		}
+		gotIngs := []string{}
+		for i, ing := range ings {
+			if ing.RecipeID != id || ing.Position != int64(i) || ing.Name != str(ing.RawText) {
+				t.Fatalf("ingredient %d = %+v", i, ing)
+			}
+			gotIngs = append(gotIngs, ing.RawText)
+		}
+		assertIDs(t, "ingredients", gotIngs, ingredients...)
+		sts, err := q.ListRecipeSteps(ctx, id)
+		if err != nil {
+			t.Fatalf("ListRecipeSteps: %v", err)
+		}
+		gotSteps := []string{}
+		for i, st := range sts {
+			if st.RecipeID != id || st.Position != int64(i) {
+				t.Fatalf("step %d = %+v", i, st)
+			}
+			gotSteps = append(gotSteps, st.Text)
+		}
+		assertIDs(t, "steps", gotSteps, steps...)
+	}
+
+	first := saveRecipe("Chili", created, []string{"beans", "beef", "tomatoes"}, []string{"Brown the beef.", "Simmer everything."})
+	assertRecipe(first.ID, "Chili", created, created, []string{"beans", "beef", "tomatoes"}, []string{"Brown the beef.", "Simmer everything."})
+
+	// Re-fetching the same URL keeps the id and created_at and replaces the
+	// fields and children.
+	second := saveRecipe("White Chili", updated, []string{"chicken", "white beans"}, []string{"Simmer."})
+	if second.ID != first.ID {
+		t.Fatalf("upsert changed id: %s -> %s", first.ID, second.ID)
+	}
+	assertRecipe(first.ID, "White Chili", created, updated, []string{"chicken", "white beans"}, []string{"Simmer."})
+
+	// A different recipe's children are not listed.
+	upsertRecipe(t, q, store.NewID(), "https://example.com/other", "Other", created)
+	var n int
+	if err := s.Reader.QueryRowContext(ctx, "SELECT count(*) FROM recipes").Scan(&n); err != nil || n != 2 {
+		t.Fatalf("recipes count = %d, %v; want 2", n, err)
+	}
+	_, err = q.GetRecipe(ctx, "missing")
+	mustNoRows(t, "GetRecipe missing", err)
+}
+
+func TestPhotos(t *testing.T) {
+	ctx := context.Background()
+	_, q := openQueries(t)
+
+	_, err := q.GetPhotoBySHA256(ctx, "bb22")
+	mustNoRows(t, "GetPhotoBySHA256 before insert", err)
+
+	first := createPhoto(t, q, "bb22")
+	createPhoto(t, q, "cc33")
+	if first.Sha256 != "bb22" || first.Width != 800 || first.Height != 600 || first.CreatedAt != created {
+		t.Fatalf("CreatePhoto returned %+v", first)
+	}
+	got, err := q.GetPhotoBySHA256(ctx, "bb22")
+	if err != nil || got != first {
+		t.Fatalf("GetPhotoBySHA256 = %+v, %v; want %+v", got, err, first)
+	}
+
+	// sha256 is not unique in the schema; the earliest photo is returned.
+	createPhoto(t, q, "bb22")
+	if got, err = q.GetPhotoBySHA256(ctx, "bb22"); err != nil || got != first {
+		t.Fatalf("GetPhotoBySHA256 with duplicate = %+v, %v; want %+v", got, err, first)
+	}
+}
+
+func TestHouseholdSettings(t *testing.T) {
+	ctx := context.Background()
+	_, q := openQueries(t)
+	_, err := q.GetHouseholdSettings(ctx)
+	mustNoRows(t, "GetHouseholdSettings before upsert", err)
+
+	p := db.UpsertHouseholdSettingsParams{
+		Timezone: "America/New_York", DinnerTime: "17:30", ReminderTime: "16:30",
+		ReviewTime: "09:00", PlanDraftDow: 5, PlanDraftTime: "09:00",
+		SuggestionsDow: 0, SuggestionsTime: "08:00", ChatAutosendDow: 6,
+		ChatAutosendTime: "08:00", CreatedAt: created, UpdatedAt: created,
+	}
+	want := db.HouseholdSetting{
+		ID: 1, Timezone: p.Timezone, DinnerTime: p.DinnerTime, ReminderTime: p.ReminderTime,
+		ReviewTime: p.ReviewTime, PlanDraftDow: p.PlanDraftDow, PlanDraftTime: p.PlanDraftTime,
+		SuggestionsDow: p.SuggestionsDow, SuggestionsTime: p.SuggestionsTime,
+		ChatAutosendDow: p.ChatAutosendDow, ChatAutosendTime: p.ChatAutosendTime,
+		CreatedAt: created, UpdatedAt: created,
+	}
+	assertSettings(t, "insert", q.UpsertHouseholdSettings, q.GetHouseholdSettings, p, want)
+
+	p = db.UpsertHouseholdSettingsParams{
+		Timezone: "America/Chicago", DinnerTime: "18:00", ReminderTime: "17:00",
+		ReviewTime: "10:00", PlanDraftDow: 4, PlanDraftTime: "20:00",
+		SuggestionsDow: 1, SuggestionsTime: "07:00", ChatAutosendDow: 0,
+		ChatAutosendTime: "09:30", OnboardingCompletedAt: str(updated),
+		UpdatesSeenAt: str(updated), CreatedAt: updated, UpdatedAt: updated,
+	}
+	want = db.HouseholdSetting{
+		ID: 1, Timezone: p.Timezone, DinnerTime: p.DinnerTime, ReminderTime: p.ReminderTime,
+		ReviewTime: p.ReviewTime, PlanDraftDow: p.PlanDraftDow, PlanDraftTime: p.PlanDraftTime,
+		SuggestionsDow: p.SuggestionsDow, SuggestionsTime: p.SuggestionsTime,
+		ChatAutosendDow: p.ChatAutosendDow, ChatAutosendTime: p.ChatAutosendTime,
+		OnboardingCompletedAt: p.OnboardingCompletedAt, UpdatesSeenAt: p.UpdatesSeenAt,
+		CreatedAt: created, UpdatedAt: updated,
+	}
+	assertSettings(t, "update", q.UpsertHouseholdSettings, q.GetHouseholdSettings, p, want)
+}
+
+func TestAISettings(t *testing.T) {
+	ctx := context.Background()
+	_, q := openQueries(t)
+	_, err := q.GetAISettings(ctx)
+	mustNoRows(t, "GetAISettings before upsert", err)
+
+	p := db.UpsertAISettingsParams{
+		Provider: "ollama", BaseUrl: "http://ollama:11434", Model: "llama3",
+		Temperature: 0.7, CreatedAt: created, UpdatedAt: created,
+	}
+	want := db.AiSetting{
+		ID: 1, Provider: p.Provider, BaseUrl: p.BaseUrl, Model: p.Model,
+		Temperature: p.Temperature, CreatedAt: created, UpdatedAt: created,
+	}
+	assertSettings(t, "insert", q.UpsertAISettings, q.GetAISettings, p, want)
+
+	p = db.UpsertAISettingsParams{
+		Provider: "anthropic", BaseUrl: "https://api.anthropic.com", Model: "claude",
+		Temperature: 0.2, SystemPrompt: str("Be brief."), ApiKeyCt: []byte{1, 2, 3},
+		ApiKeyLast4: str("wxyz"), KeyVerifiedAt: str(updated), CreatedAt: updated, UpdatedAt: updated,
+	}
+	want = db.AiSetting{
+		ID: 1, Provider: p.Provider, BaseUrl: p.BaseUrl, Model: p.Model,
+		Temperature: p.Temperature, SystemPrompt: p.SystemPrompt, ApiKeyCt: p.ApiKeyCt,
+		ApiKeyLast4: p.ApiKeyLast4, KeyVerifiedAt: p.KeyVerifiedAt,
+		CreatedAt: created, UpdatedAt: updated,
+	}
+	assertSettings(t, "update", q.UpsertAISettings, q.GetAISettings, p, want)
+}
+
+func TestRecipeSearchSettings(t *testing.T) {
+	ctx := context.Background()
+	_, q := openQueries(t)
+	_, err := q.GetRecipeSearchSettings(ctx)
+	mustNoRows(t, "GetRecipeSearchSettings before upsert", err)
+
+	p := db.UpsertRecipeSearchSettingsParams{
+		Provider: "searxng", BaseUrl: str("http://searxng:8080"), CreatedAt: created, UpdatedAt: created,
+	}
+	want := db.RecipeSearchSetting{
+		ID: 1, Provider: p.Provider, BaseUrl: p.BaseUrl, CreatedAt: created, UpdatedAt: created,
+	}
+	assertSettings(t, "insert", q.UpsertRecipeSearchSettings, q.GetRecipeSearchSettings, p, want)
+
+	p = db.UpsertRecipeSearchSettingsParams{
+		Provider: "brave", ApiKeyCt: []byte{9, 8, 7}, CreatedAt: updated, UpdatedAt: updated,
+	}
+	want = db.RecipeSearchSetting{
+		ID: 1, Provider: p.Provider, ApiKeyCt: p.ApiKeyCt, CreatedAt: created, UpdatedAt: updated,
+	}
+	assertSettings(t, "update", q.UpsertRecipeSearchSettings, q.GetRecipeSearchSettings, p, want)
+}
+
+func TestIntegrationsGoogle(t *testing.T) {
+	ctx := context.Background()
+	_, q := openQueries(t)
+	_, err := q.GetIntegrationsGoogle(ctx)
+	mustNoRows(t, "GetIntegrationsGoogle before upsert", err)
+
+	p := db.UpsertIntegrationsGoogleParams{
+		RefreshTokenCt: []byte{1}, ConnectedAt: created, CreatedAt: created, UpdatedAt: created,
+	}
+	want := db.IntegrationsGoogle{
+		ID: 1, RefreshTokenCt: p.RefreshTokenCt, ConnectedAt: created, CreatedAt: created, UpdatedAt: created,
+	}
+	assertSettings(t, "insert", q.UpsertIntegrationsGoogle, q.GetIntegrationsGoogle, p, want)
+
+	p = db.UpsertIntegrationsGoogleParams{
+		RefreshTokenCt: []byte{2, 3}, CalendarID: str("family@group.calendar.google.com"),
+		CalendarName: str("Family"), ConnectedAt: updated, LastSyncError: str("quota exceeded"),
+		CreatedAt: updated, UpdatedAt: updated,
+	}
+	want = db.IntegrationsGoogle{
+		ID: 1, RefreshTokenCt: p.RefreshTokenCt, CalendarID: p.CalendarID,
+		CalendarName: p.CalendarName, ConnectedAt: updated, LastSyncError: p.LastSyncError,
+		CreatedAt: created, UpdatedAt: updated,
+	}
+	assertSettings(t, "update", q.UpsertIntegrationsGoogle, q.GetIntegrationsGoogle, p, want)
+}
+
+func TestChatSettings(t *testing.T) {
+	ctx := context.Background()
+	_, q := openQueries(t)
+	_, err := q.GetChatSettings(ctx)
+	mustNoRows(t, "GetChatSettings before upsert", err)
+
+	p := db.UpsertChatSettingsParams{
+		WebhookUrlCt: []byte{4, 5}, CreatedAt: created, UpdatedAt: created,
+	}
+	want := db.ChatSetting{
+		ID: 1, WebhookUrlCt: p.WebhookUrlCt, CreatedAt: created, UpdatedAt: created,
+	}
+	assertSettings(t, "insert", q.UpsertChatSettings, q.GetChatSettings, p, want)
+
+	p = db.UpsertChatSettingsParams{
+		WebhookUrlCt: []byte{6}, SpaceLabel: str("Kitchen"), LastTestAt: str(updated),
+		LastTestStatus: str("ok"), CreatedAt: updated, UpdatedAt: updated,
+	}
+	want = db.ChatSetting{
+		ID: 1, WebhookUrlCt: p.WebhookUrlCt, SpaceLabel: p.SpaceLabel, LastTestAt: p.LastTestAt,
+		LastTestStatus: p.LastTestStatus, CreatedAt: created, UpdatedAt: updated,
+	}
+	assertSettings(t, "update", q.UpsertChatSettings, q.GetChatSettings, p, want)
+}
+
+// assertSettings upserts p and checks that both the returned row and a
+// fresh Get equal want. On update, want keeps the original created_at.
+func assertSettings[P, R any](
+	t *testing.T, what string,
+	upsert func(context.Context, P) (R, error), get func(context.Context) (R, error),
+	p P, want R,
+) {
+	t.Helper()
+	ctx := context.Background()
+	got, err := upsert(ctx, p)
+	if err != nil {
+		t.Fatalf("%s upsert: %v", what, err)
+	}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("%s upsert returned %+v, want %+v", what, got, want)
+	}
+	got, err = get(ctx)
+	if err != nil {
+		t.Fatalf("%s get: %v", what, err)
+	}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("%s get = %+v, want %+v", what, got, want)
+	}
+}

internal/db/dinners.sql.go

@@ -0,0 +1,321 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: dinners.sql
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+const archiveDinner = `-- name: ArchiveDinner :one
+UPDATE dinners
+SET status = 'archived',
+	updated_by = ?,
+	updated_at = ?
+WHERE id = ?
+RETURNING id, name, normalized_name, status, origin, method, minutes_total, difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status, updated_by, created_at, updated_at
+`
+
+type ArchiveDinnerParams struct {
+	UpdatedBy sql.NullString
+	UpdatedAt string
+	ID        string
+}
+
+// An unknown id returns sql.ErrNoRows.
+func (q *Queries) ArchiveDinner(ctx context.Context, arg ArchiveDinnerParams) (Dinner, error) {
+	row := q.db.QueryRowContext(ctx, archiveDinner, arg.UpdatedBy, arg.UpdatedAt, arg.ID)
+	var i Dinner
+	err := row.Scan(
+		&i.ID,
+		&i.Name,
+		&i.NormalizedName,
+		&i.Status,
+		&i.Origin,
+		&i.Method,
+		&i.MinutesTotal,
+		&i.Difficulty,
+		&i.Cuisine,
+		&i.IsFavorite,
+		&i.RecipeID,
+		&i.PhotoID,
+		&i.GroundingStatus,
+		&i.UpdatedBy,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const createDinner = `-- name: CreateDinner :one
+INSERT INTO dinners (
+	id, name, normalized_name, status, origin, method, minutes_total,
+	difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status,
+	updated_by, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?, ?,
+	?, ?, ?, ?, ?, ?,
+	?, ?, ?
+)
+RETURNING id, name, normalized_name, status, origin, method, minutes_total, difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status, updated_by, created_at, updated_at
+`
+
+type CreateDinnerParams struct {
+	ID              string
+	Name            string
+	NormalizedName  string
+	Status          string
+	Origin          string
+	Method          sql.NullString
+	MinutesTotal    sql.NullInt64
+	Difficulty      sql.NullString
+	Cuisine         sql.NullString
+	IsFavorite      int64
+	RecipeID        sql.NullString
+	PhotoID         sql.NullString
+	GroundingStatus string
+	UpdatedBy       sql.NullString
+	CreatedAt       string
+	UpdatedAt       string
+}
+
+func (q *Queries) CreateDinner(ctx context.Context, arg CreateDinnerParams) (Dinner, error) {
+	row := q.db.QueryRowContext(ctx, createDinner,
+		arg.ID,
+		arg.Name,
+		arg.NormalizedName,
+		arg.Status,
+		arg.Origin,
+		arg.Method,
+		arg.MinutesTotal,
+		arg.Difficulty,
+		arg.Cuisine,
+		arg.IsFavorite,
+		arg.RecipeID,
+		arg.PhotoID,
+		arg.GroundingStatus,
+		arg.UpdatedBy,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i Dinner
+	err := row.Scan(
+		&i.ID,
+		&i.Name,
+		&i.NormalizedName,
+		&i.Status,
+		&i.Origin,
+		&i.Method,
+		&i.MinutesTotal,
+		&i.Difficulty,
+		&i.Cuisine,
+		&i.IsFavorite,
+		&i.RecipeID,
+		&i.PhotoID,
+		&i.GroundingStatus,
+		&i.UpdatedBy,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const getDinner = `-- name: GetDinner :one
+SELECT id, name, normalized_name, status, origin, method, minutes_total, difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status, updated_by, created_at, updated_at FROM dinners
+WHERE id = ?
+`
+
+func (q *Queries) GetDinner(ctx context.Context, id string) (Dinner, error) {
+	row := q.db.QueryRowContext(ctx, getDinner, id)
+	var i Dinner
+	err := row.Scan(
+		&i.ID,
+		&i.Name,
+		&i.NormalizedName,
+		&i.Status,
+		&i.Origin,
+		&i.Method,
+		&i.MinutesTotal,
+		&i.Difficulty,
+		&i.Cuisine,
+		&i.IsFavorite,
+		&i.RecipeID,
+		&i.PhotoID,
+		&i.GroundingStatus,
+		&i.UpdatedBy,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const listDinnersByStatus = `-- name: ListDinnersByStatus :many
+SELECT id, name, normalized_name, status, origin, method, minutes_total, difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status, updated_by, created_at, updated_at FROM dinners
+WHERE status = ?
+ORDER BY normalized_name, id
+`
+
+func (q *Queries) ListDinnersByStatus(ctx context.Context, status string) ([]Dinner, error) {
+	rows, err := q.db.QueryContext(ctx, listDinnersByStatus, status)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Dinner
+	for rows.Next() {
+		var i Dinner
+		if err := rows.Scan(
+			&i.ID,
+			&i.Name,
+			&i.NormalizedName,
+			&i.Status,
+			&i.Origin,
+			&i.Method,
+			&i.MinutesTotal,
+			&i.Difficulty,
+			&i.Cuisine,
+			&i.IsFavorite,
+			&i.RecipeID,
+			&i.PhotoID,
+			&i.GroundingStatus,
+			&i.UpdatedBy,
+			&i.CreatedAt,
+			&i.UpdatedAt,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const setDinnerFavorite = `-- name: SetDinnerFavorite :one
+UPDATE dinners
+SET is_favorite = ?,
+	updated_by = ?,
+	updated_at = ?
+WHERE id = ?
+RETURNING id, name, normalized_name, status, origin, method, minutes_total, difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status, updated_by, created_at, updated_at
+`
+
+type SetDinnerFavoriteParams struct {
+	IsFavorite int64
+	UpdatedBy  sql.NullString
+	UpdatedAt  string
+	ID         string
+}
+
+// An unknown id returns sql.ErrNoRows.
+func (q *Queries) SetDinnerFavorite(ctx context.Context, arg SetDinnerFavoriteParams) (Dinner, error) {
+	row := q.db.QueryRowContext(ctx, setDinnerFavorite,
+		arg.IsFavorite,
+		arg.UpdatedBy,
+		arg.UpdatedAt,
+		arg.ID,
+	)
+	var i Dinner
+	err := row.Scan(
+		&i.ID,
+		&i.Name,
+		&i.NormalizedName,
+		&i.Status,
+		&i.Origin,
+		&i.Method,
+		&i.MinutesTotal,
+		&i.Difficulty,
+		&i.Cuisine,
+		&i.IsFavorite,
+		&i.RecipeID,
+		&i.PhotoID,
+		&i.GroundingStatus,
+		&i.UpdatedBy,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const updateDinner = `-- name: UpdateDinner :one
+UPDATE dinners
+SET name = ?,
+	normalized_name = ?,
+	status = ?,
+	origin = ?,
+	method = ?,
+	minutes_total = ?,
+	difficulty = ?,
+	cuisine = ?,
+	recipe_id = ?,
+	photo_id = ?,
+	grounding_status = ?,
+	updated_by = ?,
+	updated_at = ?
+WHERE id = ?
+RETURNING id, name, normalized_name, status, origin, method, minutes_total, difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status, updated_by, created_at, updated_at
+`
+
+type UpdateDinnerParams struct {
+	Name            string
+	NormalizedName  string
+	Status          string
+	Origin          string
+	Method          sql.NullString
+	MinutesTotal    sql.NullInt64
+	Difficulty      sql.NullString
+	Cuisine         sql.NullString
+	RecipeID        sql.NullString
+	PhotoID         sql.NullString
+	GroundingStatus string
+	UpdatedBy       sql.NullString
+	UpdatedAt       string
+	ID              string
+}
+
+// An unknown id returns sql.ErrNoRows.
+func (q *Queries) UpdateDinner(ctx context.Context, arg UpdateDinnerParams) (Dinner, error) {
+	row := q.db.QueryRowContext(ctx, updateDinner,
+		arg.Name,
+		arg.NormalizedName,
+		arg.Status,
+		arg.Origin,
+		arg.Method,
+		arg.MinutesTotal,
+		arg.Difficulty,
+		arg.Cuisine,
+		arg.RecipeID,
+		arg.PhotoID,
+		arg.GroundingStatus,
+		arg.UpdatedBy,
+		arg.UpdatedAt,
+		arg.ID,
+	)
+	var i Dinner
+	err := row.Scan(
+		&i.ID,
+		&i.Name,
+		&i.NormalizedName,
+		&i.Status,
+		&i.Origin,
+		&i.Method,
+		&i.MinutesTotal,
+		&i.Difficulty,
+		&i.Cuisine,
+		&i.IsFavorite,
+		&i.RecipeID,
+		&i.PhotoID,
+		&i.GroundingStatus,
+		&i.UpdatedBy,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}

internal/db/jobs.sql.go

@@ -0,0 +1,166 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: jobs.sql
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+const claimNextJob = `-- name: ClaimNextJob :one
+UPDATE jobs
+SET status = 'running', started_at = ?1, updated_at = ?1
+WHERE id = (SELECT id FROM jobs WHERE status = 'queued' ORDER BY id LIMIT 1)
+RETURNING id, kind, status, payload, result, error, started_at, finished_at, created_at, updated_at
+`
+
+// Marks the oldest queued job running and returns it. Returns sql.ErrNoRows
+// when no job is queued.
+func (q *Queries) ClaimNextJob(ctx context.Context, now sql.NullString) (Job, error) {
+	row := q.db.QueryRowContext(ctx, claimNextJob, now)
+	var i Job
+	err := row.Scan(
+		&i.ID,
+		&i.Kind,
+		&i.Status,
+		&i.Payload,
+		&i.Result,
+		&i.Error,
+		&i.StartedAt,
+		&i.FinishedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const createJob = `-- name: CreateJob :exec
+INSERT INTO jobs (id, kind, status, payload, created_at, updated_at)
+VALUES (?, ?, 'queued', ?, ?, ?)
+`
+
+type CreateJobParams struct {
+	ID        string
+	Kind      string
+	Payload   string
+	CreatedAt string
+	UpdatedAt string
+}
+
+func (q *Queries) CreateJob(ctx context.Context, arg CreateJobParams) error {
+	_, err := q.db.ExecContext(ctx, createJob,
+		arg.ID,
+		arg.Kind,
+		arg.Payload,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	return err
+}
+
+const failJob = `-- name: FailJob :execrows
+UPDATE jobs
+SET status = 'failed', error = ?1, finished_at = ?2, updated_at = ?2
+WHERE id = ?3 AND status = 'running'
+`
+
+type FailJobParams struct {
+	Error sql.NullString
+	Now   sql.NullString
+	ID    string
+}
+
+func (q *Queries) FailJob(ctx context.Context, arg FailJobParams) (int64, error) {
+	result, err := q.db.ExecContext(ctx, failJob, arg.Error, arg.Now, arg.ID)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}
+
+const failRunningJobs = `-- name: FailRunningJobs :execrows
+UPDATE jobs
+SET status = 'failed', error = ?1, finished_at = ?2, updated_at = ?2
+WHERE status = 'running'
+`
+
+type FailRunningJobsParams struct {
+	Error sql.NullString
+	Now   sql.NullString
+}
+
+// Fails every job left running, at boot before any worker starts.
+func (q *Queries) FailRunningJobs(ctx context.Context, arg FailRunningJobsParams) (int64, error) {
+	result, err := q.db.ExecContext(ctx, failRunningJobs, arg.Error, arg.Now)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}
+
+const getJob = `-- name: GetJob :one
+SELECT id, kind, status, payload, result, error, started_at, finished_at, created_at, updated_at FROM jobs
+WHERE id = ?
+`
+
+func (q *Queries) GetJob(ctx context.Context, id string) (Job, error) {
+	row := q.db.QueryRowContext(ctx, getJob, id)
+	var i Job
+	err := row.Scan(
+		&i.ID,
+		&i.Kind,
+		&i.Status,
+		&i.Payload,
+		&i.Result,
+		&i.Error,
+		&i.StartedAt,
+		&i.FinishedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const publishJobResult = `-- name: PublishJobResult :execrows
+UPDATE jobs
+SET result = ?, updated_at = ?
+WHERE id = ? AND status = 'running'
+`
+
+type PublishJobResultParams struct {
+	Result    sql.NullString
+	UpdatedAt string
+	ID        string
+}
+
+// Stores a partial result of a running job.
+func (q *Queries) PublishJobResult(ctx context.Context, arg PublishJobResultParams) (int64, error) {
+	result, err := q.db.ExecContext(ctx, publishJobResult, arg.Result, arg.UpdatedAt, arg.ID)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}
+
+const succeedJob = `-- name: SucceedJob :execrows
+UPDATE jobs
+SET status = 'succeeded', result = ?1, finished_at = ?2, updated_at = ?2
+WHERE id = ?3 AND status = 'running'
+`
+
+type SucceedJobParams struct {
+	Result sql.NullString
+	Now    sql.NullString
+	ID     string
+}
+
+func (q *Queries) SucceedJob(ctx context.Context, arg SucceedJobParams) (int64, error) {
+	result, err := q.db.ExecContext(ctx, succeedJob, arg.Result, arg.Now, arg.ID)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}

internal/db/models.go

@@ -0,0 +1,310 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+
+package db
+
+import (
+	"database/sql"
+)
+
+type AiRun struct {
+	ID               string
+	Skill            string
+	SkillVersion     string
+	Provider         string
+	Model            string
+	Temperature      float64
+	Status           string
+	LatencyMs        sql.NullInt64
+	TokensIn         sql.NullInt64
+	TokensOut        sql.NullInt64
+	Error            sql.NullString
+	RequestRedacted  string
+	ResponseRedacted sql.NullString
+	CreatedAt        string
+	UpdatedAt        string
+}
+
+type AiSetting struct {
+	ID            int64
+	Provider      string
+	BaseUrl       string
+	Model         string
+	Temperature   float64
+	SystemPrompt  sql.NullString
+	ApiKeyCt      []byte
+	ApiKeyLast4   sql.NullString
+	KeyVerifiedAt sql.NullString
+	CreatedAt     string
+	UpdatedAt     string
+}
+
+type ChatSetting struct {
+	ID             int64
+	WebhookUrlCt   []byte
+	SpaceLabel     sql.NullString
+	LastTestAt     sql.NullString
+	LastTestStatus sql.NullString
+	CreatedAt      string
+	UpdatedAt      string
+}
+
+type Dinner struct {
+	ID              string
+	Name            string
+	NormalizedName  string
+	Status          string
+	Origin          string
+	Method          sql.NullString
+	MinutesTotal    sql.NullInt64
+	Difficulty      sql.NullString
+	Cuisine         sql.NullString
+	IsFavorite      int64
+	RecipeID        sql.NullString
+	PhotoID         sql.NullString
+	GroundingStatus string
+	UpdatedBy       sql.NullString
+	CreatedAt       string
+	UpdatedAt       string
+}
+
+type HouseholdSetting struct {
+	ID                    int64
+	Timezone              string
+	DinnerTime            string
+	ReminderTime          string
+	ReviewTime            string
+	PlanDraftDow          int64
+	PlanDraftTime         string
+	SuggestionsDow        int64
+	SuggestionsTime       string
+	ChatAutosendDow       int64
+	ChatAutosendTime      string
+	OnboardingCompletedAt sql.NullString
+	UpdatesSeenAt         sql.NullString
+	CreatedAt             string
+	UpdatedAt             string
+	UpdatedBy             sql.NullString
+}
+
+type IntegrationsGoogle struct {
+	ID             int64
+	RefreshTokenCt []byte
+	CalendarID     sql.NullString
+	CalendarName   sql.NullString
+	ConnectedAt    string
+	LastSyncError  sql.NullString
+	CreatedAt      string
+	UpdatedAt      string
+}
+
+type Job struct {
+	ID         string
+	Kind       string
+	Status     string
+	Payload    string
+	Result     sql.NullString
+	Error      sql.NullString
+	StartedAt  sql.NullString
+	FinishedAt sql.NullString
+	CreatedAt  string
+	UpdatedAt  string
+}
+
+type NotificationOutbox struct {
+	ID            string
+	EventKey      string
+	Channel       string
+	Payload       string
+	Status        string
+	Attempts      int64
+	NextAttemptAt sql.NullString
+	LastError     sql.NullString
+	CreatedAt     string
+	UpdatedAt     string
+}
+
+type NotificationPref struct {
+	Event     string
+	Push      int64
+	Chat      int64
+	CreatedAt string
+	UpdatedAt string
+}
+
+type Photo struct {
+	ID        string
+	SourceUrl string
+	LocalPath string
+	Width     int64
+	Height    int64
+	Sha256    string
+	FetchedAt string
+	CreatedAt string
+	UpdatedAt string
+}
+
+type PlanDay struct {
+	ID              string
+	PlanID          string
+	Date            string
+	DinnerID        sql.NullString
+	IsNew           int64
+	CalendarEventID sql.NullString
+	CreatedAt       string
+	UpdatedAt       string
+}
+
+type PushSubscription struct {
+	ID            string
+	Endpoint      string
+	P256dh        string
+	Auth          string
+	UserAgent     sql.NullString
+	FailureCount  int64
+	LastSuccessAt sql.NullString
+	CreatedAt     string
+	UpdatedAt     string
+}
+
+type Recipe struct {
+	ID           string
+	SourceUrl    string
+	SiteName     sql.NullString
+	Title        string
+	TotalMinutes sql.NullInt64
+	PrepMinutes  sql.NullInt64
+	CookMinutes  sql.NullInt64
+	Yield        sql.NullString
+	RawJsonld    string
+	FetchedAt    string
+	CreatedAt    string
+	UpdatedAt    string
+}
+
+type RecipeIngredient struct {
+	ID        string
+	RecipeID  string
+	Position  int64
+	RawText   string
+	Name      sql.NullString
+	Qty       sql.NullString
+	Unit      sql.NullString
+	Note      sql.NullString
+	CreatedAt string
+	UpdatedAt string
+}
+
+type RecipeSearchSetting struct {
+	ID        int64
+	Provider  string
+	BaseUrl   sql.NullString
+	ApiKeyCt  []byte
+	CreatedAt string
+	UpdatedAt string
+}
+
+type RecipeStep struct {
+	ID        string
+	RecipeID  string
+	Position  int64
+	Text      string
+	CreatedAt string
+	UpdatedAt string
+}
+
+type RotationReview struct {
+	ID        string
+	DinnerID  string
+	PlanDate  string
+	Status    string
+	Decision  sql.NullString
+	DecidedAt sql.NullString
+	UpdatedBy sql.NullString
+	CreatedAt string
+	UpdatedAt string
+}
+
+type ScheduleRun struct {
+	ID        string
+	Schedule  string
+	PeriodKey string
+	CreatedAt string
+}
+
+type Session struct {
+	IDHash     string
+	Subject    string
+	Email      string
+	Name       string
+	Groups     string
+	CsrfToken  string
+	CreatedAt  string
+	LastSeenAt string
+	ExpiresAt  string
+}
+
+type ShoppingGroup struct {
+	ID        string
+	ListID    string
+	DinnerID  string
+	Position  int64
+	CreatedAt string
+	UpdatedAt string
+}
+
+type ShoppingItem struct {
+	ID        string
+	GroupID   string
+	Name      string
+	Qty       sql.NullString
+	Needed    int64
+	Position  int64
+	CreatedAt string
+	UpdatedAt string
+}
+
+type ShoppingList struct {
+	ID           string
+	WeekStart    string
+	PlanID       string
+	Title        string
+	Status       string
+	SentToChatAt sql.NullString
+	FrozenAt     sql.NullString
+	CreatedAt    string
+	UpdatedAt    string
+}
+
+type Suggestion struct {
+	ID              string
+	DinnerID        string
+	BatchID         string
+	Reason          string
+	CitedRegularIds string
+	Status          string
+	DecidedAt       sql.NullString
+	CreatedAt       string
+	UpdatedAt       string
+}
+
+type SuggestionBatch struct {
+	ID        string
+	Trigger   string
+	Status    string
+	AiRunID   sql.NullString
+	CreatedAt string
+	UpdatedAt string
+}
+
+type WeekPlan struct {
+	ID               string
+	WeekStart        string
+	Status           string
+	AiNote           sql.NullString
+	AiRunID          sql.NullString
+	CalendarSyncedAt sql.NullString
+	CreatedAt        string
+	UpdatedAt        string
+}

internal/db/photos.sql.go

@@ -0,0 +1,86 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: photos.sql
+
+package db
+
+import (
+	"context"
+)
+
+const createPhoto = `-- name: CreatePhoto :one
+INSERT INTO photos (
+	id, source_url, local_path, width, height, sha256, fetched_at,
+	created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?, ?,
+	?, ?
+)
+RETURNING id, source_url, local_path, width, height, sha256, fetched_at, created_at, updated_at
+`
+
+type CreatePhotoParams struct {
+	ID        string
+	SourceUrl string
+	LocalPath string
+	Width     int64
+	Height    int64
+	Sha256    string
+	FetchedAt string
+	CreatedAt string
+	UpdatedAt string
+}
+
+func (q *Queries) CreatePhoto(ctx context.Context, arg CreatePhotoParams) (Photo, error) {
+	row := q.db.QueryRowContext(ctx, createPhoto,
+		arg.ID,
+		arg.SourceUrl,
+		arg.LocalPath,
+		arg.Width,
+		arg.Height,
+		arg.Sha256,
+		arg.FetchedAt,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i Photo
+	err := row.Scan(
+		&i.ID,
+		&i.SourceUrl,
+		&i.LocalPath,
+		&i.Width,
+		&i.Height,
+		&i.Sha256,
+		&i.FetchedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const getPhotoBySHA256 = `-- name: GetPhotoBySHA256 :one
+SELECT id, source_url, local_path, width, height, sha256, fetched_at, created_at, updated_at FROM photos
+WHERE sha256 = ?
+ORDER BY id
+LIMIT 1
+`
+
+// Finds stored image bytes by content hash. The schema does not make sha256
+// unique, so the earliest-created (lowest id) match is returned.
+func (q *Queries) GetPhotoBySHA256(ctx context.Context, sha256 string) (Photo, error) {
+	row := q.db.QueryRowContext(ctx, getPhotoBySHA256, sha256)
+	var i Photo
+	err := row.Scan(
+		&i.ID,
+		&i.SourceUrl,
+		&i.LocalPath,
+		&i.Width,
+		&i.Height,
+		&i.Sha256,
+		&i.FetchedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}

internal/db/querier.go

@@ -0,0 +1,77 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+type Querier interface {
+	// An unknown id returns sql.ErrNoRows.
+	ArchiveDinner(ctx context.Context, arg ArchiveDinnerParams) (Dinner, error)
+	// Marks the oldest queued job running and returns it. Returns sql.ErrNoRows
+	// when no job is queued.
+	ClaimNextJob(ctx context.Context, now sql.NullString) (Job, error)
+	CreateDinner(ctx context.Context, arg CreateDinnerParams) (Dinner, error)
+	CreateJob(ctx context.Context, arg CreateJobParams) error
+	CreatePhoto(ctx context.Context, arg CreatePhotoParams) (Photo, error)
+	CreateRecipeIngredient(ctx context.Context, arg CreateRecipeIngredientParams) error
+	CreateRecipeStep(ctx context.Context, arg CreateRecipeStepParams) error
+	DeleteRecipeIngredients(ctx context.Context, recipeID string) error
+	DeleteRecipeSteps(ctx context.Context, recipeID string) error
+	FailJob(ctx context.Context, arg FailJobParams) (int64, error)
+	// Fails every job left running, at boot before any worker starts.
+	FailRunningJobs(ctx context.Context, arg FailRunningJobsParams) (int64, error)
+	// Returns sql.ErrNoRows until the row exists.
+	GetAISettings(ctx context.Context) (AiSetting, error)
+	// Returns sql.ErrNoRows until the row exists.
+	GetChatSettings(ctx context.Context) (ChatSetting, error)
+	GetDinner(ctx context.Context, id string) (Dinner, error)
+	// Returns sql.ErrNoRows until the row exists.
+	GetHouseholdSettings(ctx context.Context) (HouseholdSetting, error)
+	// Returns sql.ErrNoRows until the row exists.
+	GetIntegrationsGoogle(ctx context.Context) (IntegrationsGoogle, error)
+	GetJob(ctx context.Context, id string) (Job, error)
+	// Finds stored image bytes by content hash. The schema does not make sha256
+	// unique, so the earliest-created (lowest id) match is returned.
+	GetPhotoBySHA256(ctx context.Context, sha256 string) (Photo, error)
+	GetRecipe(ctx context.Context, id string) (Recipe, error)
+	GetRecipeBySourceURL(ctx context.Context, sourceUrl string) (Recipe, error)
+	// Returns sql.ErrNoRows until the row exists.
+	GetRecipeSearchSettings(ctx context.Context) (RecipeSearchSetting, error)
+	ListDinnersByStatus(ctx context.Context, status string) ([]Dinner, error)
+	ListRecipeIngredients(ctx context.Context, recipeID string) ([]RecipeIngredient, error)
+	ListRecipeSteps(ctx context.Context, recipeID string) ([]RecipeStep, error)
+	// Stores a partial result of a running job.
+	PublishJobResult(ctx context.Context, arg PublishJobResultParams) (int64, error)
+	// An unknown id returns sql.ErrNoRows.
+	SetDinnerFavorite(ctx context.Context, arg SetDinnerFavoriteParams) (Dinner, error)
+	SucceedJob(ctx context.Context, arg SucceedJobParams) (int64, error)
+	// An unknown id returns sql.ErrNoRows.
+	UpdateDinner(ctx context.Context, arg UpdateDinnerParams) (Dinner, error)
+	// Creates the single row (id 1) or replaces every column except id and
+	// created_at.
+	UpsertAISettings(ctx context.Context, arg UpsertAISettingsParams) (AiSetting, error)
+	// Creates the single row (id 1) or replaces every column except id and
+	// created_at.
+	UpsertChatSettings(ctx context.Context, arg UpsertChatSettingsParams) (ChatSetting, error)
+	// Creates the single row (id 1) or replaces every column except id and
+	// created_at.
+	UpsertHouseholdSettings(ctx context.Context, arg UpsertHouseholdSettingsParams) (HouseholdSetting, error)
+	// Creates the single row (id 1) or replaces every column except id and
+	// created_at.
+	UpsertIntegrationsGoogle(ctx context.Context, arg UpsertIntegrationsGoogleParams) (IntegrationsGoogle, error)
+	// A recipe is keyed by source_url: re-fetching the same URL updates the
+	// existing row and keeps its id and created_at, which the returned row
+	// carries. Replace its ingredients and steps in the same transaction with
+	// DeleteRecipeIngredients/DeleteRecipeSteps then the Create queries.
+	UpsertRecipe(ctx context.Context, arg UpsertRecipeParams) (Recipe, error)
+	// Creates the single row (id 1) or replaces every column except id and
+	// created_at.
+	UpsertRecipeSearchSettings(ctx context.Context, arg UpsertRecipeSearchSettingsParams) (RecipeSearchSetting, error)
+}
+
+var _ Querier = (*Queries)(nil)

internal/db/recipes.sql.go

@@ -0,0 +1,298 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: recipes.sql
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+const createRecipeIngredient = `-- name: CreateRecipeIngredient :exec
+INSERT INTO recipe_ingredients (
+	id, recipe_id, position, raw_text, name, qty, unit, note,
+	created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?, ?, ?,
+	?, ?
+)
+`
+
+type CreateRecipeIngredientParams struct {
+	ID        string
+	RecipeID  string
+	Position  int64
+	RawText   string
+	Name      sql.NullString
+	Qty       sql.NullString
+	Unit      sql.NullString
+	Note      sql.NullString
+	CreatedAt string
+	UpdatedAt string
+}
+
+func (q *Queries) CreateRecipeIngredient(ctx context.Context, arg CreateRecipeIngredientParams) error {
+	_, err := q.db.ExecContext(ctx, createRecipeIngredient,
+		arg.ID,
+		arg.RecipeID,
+		arg.Position,
+		arg.RawText,
+		arg.Name,
+		arg.Qty,
+		arg.Unit,
+		arg.Note,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	return err
+}
+
+const createRecipeStep = `-- name: CreateRecipeStep :exec
+INSERT INTO recipe_steps (
+	id, recipe_id, position, text, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?
+)
+`
+
+type CreateRecipeStepParams struct {
+	ID        string
+	RecipeID  string
+	Position  int64
+	Text      string
+	CreatedAt string
+	UpdatedAt string
+}
+
+func (q *Queries) CreateRecipeStep(ctx context.Context, arg CreateRecipeStepParams) error {
+	_, err := q.db.ExecContext(ctx, createRecipeStep,
+		arg.ID,
+		arg.RecipeID,
+		arg.Position,
+		arg.Text,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	return err
+}
+
+const deleteRecipeIngredients = `-- name: DeleteRecipeIngredients :exec
+DELETE FROM recipe_ingredients
+WHERE recipe_id = ?
+`
+
+func (q *Queries) DeleteRecipeIngredients(ctx context.Context, recipeID string) error {
+	_, err := q.db.ExecContext(ctx, deleteRecipeIngredients, recipeID)
+	return err
+}
+
+const deleteRecipeSteps = `-- name: DeleteRecipeSteps :exec
+DELETE FROM recipe_steps
+WHERE recipe_id = ?
+`
+
+func (q *Queries) DeleteRecipeSteps(ctx context.Context, recipeID string) error {
+	_, err := q.db.ExecContext(ctx, deleteRecipeSteps, recipeID)
+	return err
+}
+
+const getRecipe = `-- name: GetRecipe :one
+SELECT id, source_url, site_name, title, total_minutes, prep_minutes, cook_minutes, yield, raw_jsonld, fetched_at, created_at, updated_at FROM recipes
+WHERE id = ?
+`
+
+func (q *Queries) GetRecipe(ctx context.Context, id string) (Recipe, error) {
+	row := q.db.QueryRowContext(ctx, getRecipe, id)
+	var i Recipe
+	err := row.Scan(
+		&i.ID,
+		&i.SourceUrl,
+		&i.SiteName,
+		&i.Title,
+		&i.TotalMinutes,
+		&i.PrepMinutes,
+		&i.CookMinutes,
+		&i.Yield,
+		&i.RawJsonld,
+		&i.FetchedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const getRecipeBySourceURL = `-- name: GetRecipeBySourceURL :one
+SELECT id, source_url, site_name, title, total_minutes, prep_minutes, cook_minutes, yield, raw_jsonld, fetched_at, created_at, updated_at FROM recipes
+WHERE source_url = ?
+`
+
+func (q *Queries) GetRecipeBySourceURL(ctx context.Context, sourceUrl string) (Recipe, error) {
+	row := q.db.QueryRowContext(ctx, getRecipeBySourceURL, sourceUrl)
+	var i Recipe
+	err := row.Scan(
+		&i.ID,
+		&i.SourceUrl,
+		&i.SiteName,
+		&i.Title,
+		&i.TotalMinutes,
+		&i.PrepMinutes,
+		&i.CookMinutes,
+		&i.Yield,
+		&i.RawJsonld,
+		&i.FetchedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const listRecipeIngredients = `-- name: ListRecipeIngredients :many
+SELECT id, recipe_id, position, raw_text, name, qty, unit, note, created_at, updated_at FROM recipe_ingredients
+WHERE recipe_id = ?
+ORDER BY position, id
+`
+
+func (q *Queries) ListRecipeIngredients(ctx context.Context, recipeID string) ([]RecipeIngredient, error) {
+	rows, err := q.db.QueryContext(ctx, listRecipeIngredients, recipeID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []RecipeIngredient
+	for rows.Next() {
+		var i RecipeIngredient
+		if err := rows.Scan(
+			&i.ID,
+			&i.RecipeID,
+			&i.Position,
+			&i.RawText,
+			&i.Name,
+			&i.Qty,
+			&i.Unit,
+			&i.Note,
+			&i.CreatedAt,
+			&i.UpdatedAt,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const listRecipeSteps = `-- name: ListRecipeSteps :many
+SELECT id, recipe_id, position, text, created_at, updated_at FROM recipe_steps
+WHERE recipe_id = ?
+ORDER BY position, id
+`
+
+func (q *Queries) ListRecipeSteps(ctx context.Context, recipeID string) ([]RecipeStep, error) {
+	rows, err := q.db.QueryContext(ctx, listRecipeSteps, recipeID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []RecipeStep
+	for rows.Next() {
+		var i RecipeStep
+		if err := rows.Scan(
+			&i.ID,
+			&i.RecipeID,
+			&i.Position,
+			&i.Text,
+			&i.CreatedAt,
+			&i.UpdatedAt,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const upsertRecipe = `-- name: UpsertRecipe :one
+INSERT INTO recipes (
+	id, source_url, site_name, title, total_minutes, prep_minutes,
+	cook_minutes, yield, raw_jsonld, fetched_at, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?,
+	?, ?, ?, ?, ?, ?
+)
+ON CONFLICT (source_url) DO UPDATE SET
+	site_name = excluded.site_name,
+	title = excluded.title,
+	total_minutes = excluded.total_minutes,
+	prep_minutes = excluded.prep_minutes,
+	cook_minutes = excluded.cook_minutes,
+	yield = excluded.yield,
+	raw_jsonld = excluded.raw_jsonld,
+	fetched_at = excluded.fetched_at,
+	updated_at = excluded.updated_at
+RETURNING id, source_url, site_name, title, total_minutes, prep_minutes, cook_minutes, yield, raw_jsonld, fetched_at, created_at, updated_at
+`
+
+type UpsertRecipeParams struct {
+	ID           string
+	SourceUrl    string
+	SiteName     sql.NullString
+	Title        string
+	TotalMinutes sql.NullInt64
+	PrepMinutes  sql.NullInt64
+	CookMinutes  sql.NullInt64
+	Yield        sql.NullString
+	RawJsonld    string
+	FetchedAt    string
+	CreatedAt    string
+	UpdatedAt    string
+}
+
+// A recipe is keyed by source_url: re-fetching the same URL updates the
+// existing row and keeps its id and created_at, which the returned row
+// carries. Replace its ingredients and steps in the same transaction with
+// DeleteRecipeIngredients/DeleteRecipeSteps then the Create queries.
+func (q *Queries) UpsertRecipe(ctx context.Context, arg UpsertRecipeParams) (Recipe, error) {
+	row := q.db.QueryRowContext(ctx, upsertRecipe,
+		arg.ID,
+		arg.SourceUrl,
+		arg.SiteName,
+		arg.Title,
+		arg.TotalMinutes,
+		arg.PrepMinutes,
+		arg.CookMinutes,
+		arg.Yield,
+		arg.RawJsonld,
+		arg.FetchedAt,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i Recipe
+	err := row.Scan(
+		&i.ID,
+		&i.SourceUrl,
+		&i.SiteName,
+		&i.Title,
+		&i.TotalMinutes,
+		&i.PrepMinutes,
+		&i.CookMinutes,
+		&i.Yield,
+		&i.RawJsonld,
+		&i.FetchedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}

internal/db/settings.sql.go

@@ -0,0 +1,433 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: settings.sql
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+const getAISettings = `-- name: GetAISettings :one
+SELECT id, provider, base_url, model, temperature, system_prompt, api_key_ct, api_key_last4, key_verified_at, created_at, updated_at FROM ai_settings
+WHERE id = 1
+`
+
+// Returns sql.ErrNoRows until the row exists.
+func (q *Queries) GetAISettings(ctx context.Context) (AiSetting, error) {
+	row := q.db.QueryRowContext(ctx, getAISettings)
+	var i AiSetting
+	err := row.Scan(
+		&i.ID,
+		&i.Provider,
+		&i.BaseUrl,
+		&i.Model,
+		&i.Temperature,
+		&i.SystemPrompt,
+		&i.ApiKeyCt,
+		&i.ApiKeyLast4,
+		&i.KeyVerifiedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const getChatSettings = `-- name: GetChatSettings :one
+SELECT id, webhook_url_ct, space_label, last_test_at, last_test_status, created_at, updated_at FROM chat_settings
+WHERE id = 1
+`
+
+// Returns sql.ErrNoRows until the row exists.
+func (q *Queries) GetChatSettings(ctx context.Context) (ChatSetting, error) {
+	row := q.db.QueryRowContext(ctx, getChatSettings)
+	var i ChatSetting
+	err := row.Scan(
+		&i.ID,
+		&i.WebhookUrlCt,
+		&i.SpaceLabel,
+		&i.LastTestAt,
+		&i.LastTestStatus,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const getHouseholdSettings = `-- name: GetHouseholdSettings :one
+SELECT id, timezone, dinner_time, reminder_time, review_time, plan_draft_dow, plan_draft_time, suggestions_dow, suggestions_time, chat_autosend_dow, chat_autosend_time, onboarding_completed_at, updates_seen_at, created_at, updated_at, updated_by FROM household_settings
+WHERE id = 1
+`
+
+// Returns sql.ErrNoRows until the row exists.
+func (q *Queries) GetHouseholdSettings(ctx context.Context) (HouseholdSetting, error) {
+	row := q.db.QueryRowContext(ctx, getHouseholdSettings)
+	var i HouseholdSetting
+	err := row.Scan(
+		&i.ID,
+		&i.Timezone,
+		&i.DinnerTime,
+		&i.ReminderTime,
+		&i.ReviewTime,
+		&i.PlanDraftDow,
+		&i.PlanDraftTime,
+		&i.SuggestionsDow,
+		&i.SuggestionsTime,
+		&i.ChatAutosendDow,
+		&i.ChatAutosendTime,
+		&i.OnboardingCompletedAt,
+		&i.UpdatesSeenAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.UpdatedBy,
+	)
+	return i, err
+}
+
+const getIntegrationsGoogle = `-- name: GetIntegrationsGoogle :one
+SELECT id, refresh_token_ct, calendar_id, calendar_name, connected_at, last_sync_error, created_at, updated_at FROM integrations_google
+WHERE id = 1
+`
+
+// Returns sql.ErrNoRows until the row exists.
+func (q *Queries) GetIntegrationsGoogle(ctx context.Context) (IntegrationsGoogle, error) {
+	row := q.db.QueryRowContext(ctx, getIntegrationsGoogle)
+	var i IntegrationsGoogle
+	err := row.Scan(
+		&i.ID,
+		&i.RefreshTokenCt,
+		&i.CalendarID,
+		&i.CalendarName,
+		&i.ConnectedAt,
+		&i.LastSyncError,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const getRecipeSearchSettings = `-- name: GetRecipeSearchSettings :one
+SELECT id, provider, base_url, api_key_ct, created_at, updated_at FROM recipe_search_settings
+WHERE id = 1
+`
+
+// Returns sql.ErrNoRows until the row exists.
+func (q *Queries) GetRecipeSearchSettings(ctx context.Context) (RecipeSearchSetting, error) {
+	row := q.db.QueryRowContext(ctx, getRecipeSearchSettings)
+	var i RecipeSearchSetting
+	err := row.Scan(
+		&i.ID,
+		&i.Provider,
+		&i.BaseUrl,
+		&i.ApiKeyCt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const upsertAISettings = `-- name: UpsertAISettings :one
+INSERT INTO ai_settings (
+	id, provider, base_url, model, temperature, system_prompt, api_key_ct,
+	api_key_last4, key_verified_at, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?, ?, ?,
+	?, ?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	provider = excluded.provider,
+	base_url = excluded.base_url,
+	model = excluded.model,
+	temperature = excluded.temperature,
+	system_prompt = excluded.system_prompt,
+	api_key_ct = excluded.api_key_ct,
+	api_key_last4 = excluded.api_key_last4,
+	key_verified_at = excluded.key_verified_at,
+	updated_at = excluded.updated_at
+RETURNING id, provider, base_url, model, temperature, system_prompt, api_key_ct, api_key_last4, key_verified_at, created_at, updated_at
+`
+
+type UpsertAISettingsParams struct {
+	Provider      string
+	BaseUrl       string
+	Model         string
+	Temperature   float64
+	SystemPrompt  sql.NullString
+	ApiKeyCt      []byte
+	ApiKeyLast4   sql.NullString
+	KeyVerifiedAt sql.NullString
+	CreatedAt     string
+	UpdatedAt     string
+}
+
+// Creates the single row (id 1) or replaces every column except id and
+// created_at.
+func (q *Queries) UpsertAISettings(ctx context.Context, arg UpsertAISettingsParams) (AiSetting, error) {
+	row := q.db.QueryRowContext(ctx, upsertAISettings,
+		arg.Provider,
+		arg.BaseUrl,
+		arg.Model,
+		arg.Temperature,
+		arg.SystemPrompt,
+		arg.ApiKeyCt,
+		arg.ApiKeyLast4,
+		arg.KeyVerifiedAt,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i AiSetting
+	err := row.Scan(
+		&i.ID,
+		&i.Provider,
+		&i.BaseUrl,
+		&i.Model,
+		&i.Temperature,
+		&i.SystemPrompt,
+		&i.ApiKeyCt,
+		&i.ApiKeyLast4,
+		&i.KeyVerifiedAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const upsertChatSettings = `-- name: UpsertChatSettings :one
+INSERT INTO chat_settings (
+	id, webhook_url_ct, space_label, last_test_at, last_test_status,
+	created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?,
+	?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	webhook_url_ct = excluded.webhook_url_ct,
+	space_label = excluded.space_label,
+	last_test_at = excluded.last_test_at,
+	last_test_status = excluded.last_test_status,
+	updated_at = excluded.updated_at
+RETURNING id, webhook_url_ct, space_label, last_test_at, last_test_status, created_at, updated_at
+`
+
+type UpsertChatSettingsParams struct {
+	WebhookUrlCt   []byte
+	SpaceLabel     sql.NullString
+	LastTestAt     sql.NullString
+	LastTestStatus sql.NullString
+	CreatedAt      string
+	UpdatedAt      string
+}
+
+// Creates the single row (id 1) or replaces every column except id and
+// created_at.
+func (q *Queries) UpsertChatSettings(ctx context.Context, arg UpsertChatSettingsParams) (ChatSetting, error) {
+	row := q.db.QueryRowContext(ctx, upsertChatSettings,
+		arg.WebhookUrlCt,
+		arg.SpaceLabel,
+		arg.LastTestAt,
+		arg.LastTestStatus,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i ChatSetting
+	err := row.Scan(
+		&i.ID,
+		&i.WebhookUrlCt,
+		&i.SpaceLabel,
+		&i.LastTestAt,
+		&i.LastTestStatus,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const upsertHouseholdSettings = `-- name: UpsertHouseholdSettings :one
+INSERT INTO household_settings (
+	id, timezone, dinner_time, reminder_time, review_time, plan_draft_dow,
+	plan_draft_time, suggestions_dow, suggestions_time, chat_autosend_dow,
+	chat_autosend_time, onboarding_completed_at, updates_seen_at,
+	updated_by, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?, ?,
+	?, ?, ?, ?,
+	?, ?, ?,
+	?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	timezone = excluded.timezone,
+	dinner_time = excluded.dinner_time,
+	reminder_time = excluded.reminder_time,
+	review_time = excluded.review_time,
+	plan_draft_dow = excluded.plan_draft_dow,
+	plan_draft_time = excluded.plan_draft_time,
+	suggestions_dow = excluded.suggestions_dow,
+	suggestions_time = excluded.suggestions_time,
+	chat_autosend_dow = excluded.chat_autosend_dow,
+	chat_autosend_time = excluded.chat_autosend_time,
+	onboarding_completed_at = excluded.onboarding_completed_at,
+	updates_seen_at = excluded.updates_seen_at,
+	updated_by = excluded.updated_by,
+	updated_at = excluded.updated_at
+RETURNING id, timezone, dinner_time, reminder_time, review_time, plan_draft_dow, plan_draft_time, suggestions_dow, suggestions_time, chat_autosend_dow, chat_autosend_time, onboarding_completed_at, updates_seen_at, created_at, updated_at, updated_by
+`
+
+type UpsertHouseholdSettingsParams struct {
+	Timezone              string
+	DinnerTime            string
+	ReminderTime          string
+	ReviewTime            string
+	PlanDraftDow          int64
+	PlanDraftTime         string
+	SuggestionsDow        int64
+	SuggestionsTime       string
+	ChatAutosendDow       int64
+	ChatAutosendTime      string
+	OnboardingCompletedAt sql.NullString
+	UpdatesSeenAt         sql.NullString
+	UpdatedBy             sql.NullString
+	CreatedAt             string
+	UpdatedAt             string
+}
+
+// Creates the single row (id 1) or replaces every column except id and
+// created_at.
+func (q *Queries) UpsertHouseholdSettings(ctx context.Context, arg UpsertHouseholdSettingsParams) (HouseholdSetting, error) {
+	row := q.db.QueryRowContext(ctx, upsertHouseholdSettings,
+		arg.Timezone,
+		arg.DinnerTime,
+		arg.ReminderTime,
+		arg.ReviewTime,
+		arg.PlanDraftDow,
+		arg.PlanDraftTime,
+		arg.SuggestionsDow,
+		arg.SuggestionsTime,
+		arg.ChatAutosendDow,
+		arg.ChatAutosendTime,
+		arg.OnboardingCompletedAt,
+		arg.UpdatesSeenAt,
+		arg.UpdatedBy,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i HouseholdSetting
+	err := row.Scan(
+		&i.ID,
+		&i.Timezone,
+		&i.DinnerTime,
+		&i.ReminderTime,
+		&i.ReviewTime,
+		&i.PlanDraftDow,
+		&i.PlanDraftTime,
+		&i.SuggestionsDow,
+		&i.SuggestionsTime,
+		&i.ChatAutosendDow,
+		&i.ChatAutosendTime,
+		&i.OnboardingCompletedAt,
+		&i.UpdatesSeenAt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.UpdatedBy,
+	)
+	return i, err
+}
+
+const upsertIntegrationsGoogle = `-- name: UpsertIntegrationsGoogle :one
+INSERT INTO integrations_google (
+	id, refresh_token_ct, calendar_id, calendar_name, connected_at,
+	last_sync_error, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?,
+	?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	refresh_token_ct = excluded.refresh_token_ct,
+	calendar_id = excluded.calendar_id,
+	calendar_name = excluded.calendar_name,
+	connected_at = excluded.connected_at,
+	last_sync_error = excluded.last_sync_error,
+	updated_at = excluded.updated_at
+RETURNING id, refresh_token_ct, calendar_id, calendar_name, connected_at, last_sync_error, created_at, updated_at
+`
+
+type UpsertIntegrationsGoogleParams struct {
+	RefreshTokenCt []byte
+	CalendarID     sql.NullString
+	CalendarName   sql.NullString
+	ConnectedAt    string
+	LastSyncError  sql.NullString
+	CreatedAt      string
+	UpdatedAt      string
+}
+
+// Creates the single row (id 1) or replaces every column except id and
+// created_at.
+func (q *Queries) UpsertIntegrationsGoogle(ctx context.Context, arg UpsertIntegrationsGoogleParams) (IntegrationsGoogle, error) {
+	row := q.db.QueryRowContext(ctx, upsertIntegrationsGoogle,
+		arg.RefreshTokenCt,
+		arg.CalendarID,
+		arg.CalendarName,
+		arg.ConnectedAt,
+		arg.LastSyncError,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i IntegrationsGoogle
+	err := row.Scan(
+		&i.ID,
+		&i.RefreshTokenCt,
+		&i.CalendarID,
+		&i.CalendarName,
+		&i.ConnectedAt,
+		&i.LastSyncError,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const upsertRecipeSearchSettings = `-- name: UpsertRecipeSearchSettings :one
+INSERT INTO recipe_search_settings (
+	id, provider, base_url, api_key_ct, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	provider = excluded.provider,
+	base_url = excluded.base_url,
+	api_key_ct = excluded.api_key_ct,
+	updated_at = excluded.updated_at
+RETURNING id, provider, base_url, api_key_ct, created_at, updated_at
+`
+
+type UpsertRecipeSearchSettingsParams struct {
+	Provider  string
+	BaseUrl   sql.NullString
+	ApiKeyCt  []byte
+	CreatedAt string
+	UpdatedAt string
+}
+
+// Creates the single row (id 1) or replaces every column except id and
+// created_at.
+func (q *Queries) UpsertRecipeSearchSettings(ctx context.Context, arg UpsertRecipeSearchSettingsParams) (RecipeSearchSetting, error) {
+	row := q.db.QueryRowContext(ctx, upsertRecipeSearchSettings,
+		arg.Provider,
+		arg.BaseUrl,
+		arg.ApiKeyCt,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i RecipeSearchSetting
+	err := row.Scan(
+		&i.ID,
+		&i.Provider,
+		&i.BaseUrl,
+		&i.ApiKeyCt,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}

internal/forwarded/forwarded.go

@@ -0,0 +1,221 @@
+// Package forwarded resolves where a request really came from. The service
+// runs behind a reverse proxy (Traefik), so the TCP peer is usually the proxy;
+// the X-Forwarded-For and X-Forwarded-Proto headers it adds are believed only
+// when the peer is a trusted proxy. From anyone else they are ignored, so a
+// client cannot spoof its address or scheme.
+package forwarded
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"net/netip"
+	"strings"
+)
+
+// Header names honoured from trusted proxies.
+const (
+	HeaderFor   = "X-Forwarded-For"
+	HeaderProto = "X-Forwarded-Proto"
+)
+
+// ErrInvalidHeader marks a malformed forwarded header from a trusted peer.
+var ErrInvalidHeader = errors.New("invalid forwarded header")
+
+// Trusted is the set of proxy addresses whose forwarded headers are honoured.
+// The zero value trusts no peer.
+type Trusted []netip.Prefix
+
+// ParseTrusted parses a comma-separated list of IP addresses and CIDR
+// prefixes. A blank list trusts no peer. Each entry must be a plain address
+// or a prefix with no host bits set; zones, IPv4-mapped IPv6 forms and
+// zero-length prefixes, which would trust every peer, are rejected.
+func ParseTrusted(s string) (Trusted, error) {
+	if strings.TrimSpace(s) == "" {
+		return nil, nil
+	}
+	var t Trusted
+	for _, entry := range strings.Split(s, ",") {
+		entry = strings.TrimSpace(entry)
+		if entry == "" {
+			return nil, fmt.Errorf("empty entry in comma-separated list %q", s)
+		}
+		p, err := parseEntry(entry)
+		if err != nil {
+			return nil, err
+		}
+		t = append(t, p)
+	}
+	return t, nil
+}
+
+func parseEntry(entry string) (netip.Prefix, error) {
+	var p netip.Prefix
+	if strings.Contains(entry, "/") {
+		var err error
+		p, err = netip.ParsePrefix(entry)
+		if err != nil {
+			return netip.Prefix{}, fmt.Errorf("invalid CIDR %q", entry)
+		}
+		if p != p.Masked() {
+			return netip.Prefix{}, fmt.Errorf("CIDR %q has host bits set (did you mean %s?)", entry, p.Masked())
+		}
+	} else {
+		a, err := netip.ParseAddr(entry)
+		if err != nil {
+			return netip.Prefix{}, fmt.Errorf("invalid IP address %q", entry)
+		}
+		if a.Zone() != "" {
+			return netip.Prefix{}, fmt.Errorf("IP address %q must not have a zone", entry)
+		}
+		p = netip.PrefixFrom(a, a.BitLen())
+	}
+	switch {
+	case p.Addr().Is4In6():
+		return netip.Prefix{}, fmt.Errorf("%q is IPv4-mapped IPv6; write the IPv4 form", entry)
+	case p.Bits() == 0:
+		return netip.Prefix{}, fmt.Errorf("%q would trust every peer", entry)
+	}
+	return p, nil
+}
+
+// Contains reports whether a is a trusted proxy address. IPv4-mapped IPv6
+// addresses, as a dual-stack listener reports IPv4 peers, match their IPv4
+// form.
+func (t Trusted) Contains(a netip.Addr) bool {
+	a = normalize(a)
+	for _, p := range t {
+		if p.Contains(a) {
+			return true
+		}
+	}
+	return false
+}
+
+func normalize(a netip.Addr) netip.Addr { return a.Unmap().WithZone("") }
+
+// Origin is where a request came from.
+type Origin struct {
+	// ClientIP is the client's address.
+	ClientIP netip.Addr
+	// Scheme is "https" or "http": the scheme the client used.
+	Scheme string
+}
+
+// Resolve works out r's Origin. When the TCP peer (r.RemoteAddr) is not in
+// trusted, both forwarded headers are ignored: the client is the peer and the
+// scheme is that of the connection.
+//
+// When the peer is trusted:
+//   - X-Forwarded-For entries (across all its header lines, in order) are
+//     walked right to left, skipping trusted proxy addresses; the first
+//     untrusted address is the client. Entries left of it are client-supplied
+//     and not examined. If every entry is trusted the leftmost is the client;
+//     with no X-Forwarded-For the peer is the client.
+//   - X-Forwarded-Proto, if present, must be a single "http" or "https" and
+//     is the scheme; without it the connection's scheme is used.
+//
+// A malformed header from a trusted peer is an error wrapping
+// ErrInvalidHeader; any other error means RemoteAddr is not an IP and port.
+func Resolve(r *http.Request, trusted Trusted) (Origin, error) {
+	peer, err := netip.ParseAddrPort(r.RemoteAddr)
+	if err != nil {
+		return Origin{}, fmt.Errorf("peer address %q is not an IP and port", r.RemoteAddr)
+	}
+	o := Origin{ClientIP: normalize(peer.Addr()), Scheme: "http"}
+	if r.TLS != nil {
+		o.Scheme = "https"
+	}
+	if !trusted.Contains(o.ClientIP) {
+		return o, nil
+	}
+	if values := r.Header.Values(HeaderFor); len(values) > 0 {
+		o.ClientIP, err = clientFromChain(strings.Split(strings.Join(values, ","), ","), trusted)
+		if err != nil {
+			return Origin{}, err
+		}
+	}
+	switch values := r.Header.Values(HeaderProto); len(values) {
+	case 0:
+	case 1:
+		switch scheme := strings.ToLower(strings.TrimSpace(values[0])); scheme {
+		case "http", "https":
+			o.Scheme = scheme
+		default:
+			return Origin{}, fmt.Errorf("%w: %s %q is not http or https", ErrInvalidHeader, HeaderProto, values[0])
+		}
+	default:
+		return Origin{}, fmt.Errorf("%w: %d %s headers, want one", ErrInvalidHeader, len(values), HeaderProto)
+	}
+	return o, nil
+}
+
+// clientFromChain returns the rightmost untrusted address in chain, or the
+// leftmost address when all are trusted.
+func clientFromChain(chain []string, trusted Trusted) (netip.Addr, error) {
+	var client netip.Addr
+	for i := len(chain) - 1; i >= 0; i-- {
+		a, err := netip.ParseAddr(strings.TrimSpace(chain[i]))
+		if err != nil {
+			return netip.Addr{}, fmt.Errorf("%w: %s entry %q is not an IP address", ErrInvalidHeader, HeaderFor, strings.TrimSpace(chain[i]))
+		}
+		client = normalize(a)
+		if !trusted.Contains(client) {
+			break
+		}
+	}
+	return client, nil
+}
+
+type contextKey struct{}
+
+// NewContext returns ctx carrying o.
+func NewContext(ctx context.Context, o Origin) context.Context {
+	return context.WithValue(ctx, contextKey{}, o)
+}
+
+// FromContext returns the Origin ctx carries; ok is false when the request
+// was not resolved.
+func FromContext(ctx context.Context) (o Origin, ok bool) {
+	o, ok = ctx.Value(contextKey{}).(Origin)
+	return o, ok
+}
+
+// ClientIP returns the resolved client address ctx carries.
+func ClientIP(ctx context.Context) (netip.Addr, bool) {
+	o, ok := FromContext(ctx)
+	return o.ClientIP, ok
+}
+
+// Scheme returns the resolved request scheme ctx carries.
+func Scheme(ctx context.Context) (string, bool) {
+	o, ok := FromContext(ctx)
+	return o.Scheme, ok
+}
+
+// LogAttr is the log attribute key for the resolved client address.
+const LogAttr = "client_ip"
+
+// LogHandler wraps h so every record logged with a resolved request's
+// context carries the client address as LogAttr.
+func LogHandler(h slog.Handler) slog.Handler { return logHandler{h} }
+
+type logHandler struct{ slog.Handler }
+
+func (h logHandler) Handle(ctx context.Context, rec slog.Record) error {
+	if ip, ok := ClientIP(ctx); ok {
+		rec = rec.Clone()
+		rec.AddAttrs(slog.String(LogAttr, ip.String()))
+	}
+	return h.Handler.Handle(ctx, rec)
+}
+
+func (h logHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
+	return logHandler{h.Handler.WithAttrs(attrs)}
+}
+
+func (h logHandler) WithGroup(name string) slog.Handler {
+	return logHandler{h.Handler.WithGroup(name)}
+}

internal/forwarded/forwarded_test.go

@@ -0,0 +1,260 @@
+package forwarded
+
+import (
+	"bytes"
+	"context"
+	"crypto/tls"
+	"errors"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"net/netip"
+	"slices"
+	"strings"
+	"testing"
+)
+
+func TestParseTrusted(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		in      string
+		want    []string
+		wantErr string
+	}{
+		{in: "", want: nil},
+		{in: "   ", want: nil},
+		{in: "10.60.1.33", want: []string{"10.60.1.33/32"}},
+		{in: "10.60.1.33, 172.16.0.0/12", want: []string{"10.60.1.33/32", "172.16.0.0/12"}},
+		{in: "2001:db8::1,2001:db8::/32", want: []string{"2001:db8::1/128", "2001:db8::/32"}},
+		{in: "traefik", wantErr: "invalid IP address"},
+		{in: "10.60.1.33:443", wantErr: "invalid IP address"},
+		{in: "10.60.1.0/33", wantErr: "invalid CIDR"},
+		{in: "10.60.1.33/24", wantErr: "did you mean 10.60.1.0/24"},
+		{in: "10.60.1.33,,10.60.1.34", wantErr: "empty entry"},
+		{in: "10.60.1.33,", wantErr: "empty entry"},
+		{in: "fe80::1%eth0", wantErr: "zone"},
+		{in: "::ffff:10.60.1.33", wantErr: "IPv4-mapped"},
+		{in: "0.0.0.0/0", wantErr: "every peer"},
+		{in: "::/0", wantErr: "every peer"},
+	}
+	for _, tt := range tests {
+		got, err := ParseTrusted(tt.in)
+		if tt.wantErr != "" {
+			if err == nil || !strings.Contains(err.Error(), tt.wantErr) {
+				t.Errorf("ParseTrusted(%q) error = %v, want one containing %q", tt.in, err, tt.wantErr)
+			}
+			continue
+		}
+		if err != nil {
+			t.Errorf("ParseTrusted(%q) error = %v", tt.in, err)
+			continue
+		}
+		var gotStr []string
+		for _, p := range got {
+			gotStr = append(gotStr, p.String())
+		}
+		if !slices.Equal(gotStr, tt.want) {
+			t.Errorf("ParseTrusted(%q) = %v, want %v", tt.in, gotStr, tt.want)
+		}
+	}
+}
+
+func TestTrustedContainsMappedIPv4(t *testing.T) {
+	t.Parallel()
+	trusted := mustTrusted(t, "10.60.1.33")
+	if !trusted.Contains(netip.MustParseAddr("::ffff:10.60.1.33")) {
+		t.Error("IPv4-mapped form of a trusted address is not trusted")
+	}
+	if Trusted(nil).Contains(netip.MustParseAddr("10.60.1.33")) {
+		t.Error("an empty set trusts a peer")
+	}
+}
+
+func mustTrusted(t *testing.T, s string) Trusted {
+	t.Helper()
+	tr, err := ParseTrusted(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return tr
+}
+
+func TestResolve(t *testing.T) {
+	t.Parallel()
+	// 10.60.1.33 is Traefik; 10.60.2.0/24 is an inner proxy tier.
+	trusted := mustTrusted(t, "10.60.1.33,10.60.2.0/24")
+	tests := []struct {
+		name       string
+		peer       string
+		tls        bool
+		xff        []string
+		xfp        []string
+		wantIP     string
+		wantScheme string
+	}{
+		{
+			name: "untrusted peer, no headers",
+			peer: "198.51.100.9:5000", wantIP: "198.51.100.9", wantScheme: "http",
+		},
+		{
+			name: "untrusted peer over TLS",
+			peer: "198.51.100.9:5000", tls: true, wantIP: "198.51.100.9", wantScheme: "https",
+		},
+		{
+			name: "untrusted peer spoofing both headers is ignored",
+			peer: "198.51.100.9:5000", xff: []string{"203.0.113.7"}, xfp: []string{"https"},
+			wantIP: "198.51.100.9", wantScheme: "http",
+		},
+		{
+			name: "untrusted peer's malformed headers are ignored, not rejected",
+			peer: "198.51.100.9:5000", xff: []string{"not-an-ip"}, xfp: []string{"gopher"},
+			wantIP: "198.51.100.9", wantScheme: "http",
+		},
+		{
+			name: "trusted peer: client from X-Forwarded-For, scheme from X-Forwarded-Proto",
+			peer: "10.60.1.33:41000", xff: []string{"203.0.113.7"}, xfp: []string{"https"},
+			wantIP: "203.0.113.7", wantScheme: "https",
+		},
+		{
+			name: "trusted peer seen as IPv4-mapped IPv6",
+			peer: "[::ffff:10.60.1.33]:41000", xff: []string{"203.0.113.7"}, xfp: []string{"https"},
+			wantIP: "203.0.113.7", wantScheme: "https",
+		},
+		{
+			name: "trusted peer without headers is itself the client",
+			peer: "10.60.1.33:41000", wantIP: "10.60.1.33", wantScheme: "http",
+		},
+		{
+			name: "rightmost untrusted address wins over a client-supplied prefix",
+			peer: "10.60.1.33:41000", xff: []string{"1.2.3.4, 203.0.113.7"}, xfp: []string{"https"},
+			wantIP: "203.0.113.7", wantScheme: "https",
+		},
+		{
+			name: "trusted proxies in the chain are skipped",
+			peer: "10.60.1.33:41000", xff: []string{"1.2.3.4, 203.0.113.7, 10.60.2.5"}, xfp: []string{"https"},
+			wantIP: "203.0.113.7", wantScheme: "https",
+		},
+		{
+			name: "several header lines form one chain",
+			peer: "10.60.1.33:41000", xff: []string{"1.2.3.4", "203.0.113.7, 10.60.2.5"},
+			wantIP: "203.0.113.7", wantScheme: "http",
+		},
+		{
+			name: "garbage left of the client is not examined",
+			peer: "10.60.1.33:41000", xff: []string{"spoofed, 203.0.113.7"},
+			wantIP: "203.0.113.7", wantScheme: "http",
+		},
+		{
+			name: "all trusted: leftmost is the client",
+			peer: "10.60.1.33:41000", xff: []string{"10.60.2.5, 10.60.2.6"},
+			wantIP: "10.60.2.5", wantScheme: "http",
+		},
+		{
+			name: "IPv6 client",
+			peer: "10.60.1.33:41000", xff: []string{"2001:db8::7"}, xfp: []string{"HTTPS"},
+			wantIP: "2001:db8::7", wantScheme: "https",
+		},
+		{
+			name: "trusted peer may downgrade to http",
+			peer: "10.60.1.33:41000", tls: true, xfp: []string{"http"},
+			wantIP: "10.60.1.33", wantScheme: "http",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			r := request(tt.peer, tt.xff, tt.xfp)
+			if tt.tls {
+				r.TLS = &tls.ConnectionState{}
+			}
+			o, err := Resolve(r, trusted)
+			if err != nil {
+				t.Fatalf("Resolve error = %v", err)
+			}
+			if o.ClientIP.String() != tt.wantIP || o.Scheme != tt.wantScheme {
+				t.Errorf("Resolve = %s %s, want %s %s", o.ClientIP, o.Scheme, tt.wantIP, tt.wantScheme)
+			}
+		})
+	}
+}
+
+func TestResolveRejectsMalformedHeadersFromTrustedPeer(t *testing.T) {
+	t.Parallel()
+	trusted := mustTrusted(t, "10.60.1.33")
+	for _, tt := range []struct {
+		name     string
+		xff, xfp []string
+	}{
+		{"X-Forwarded-For not an IP", []string{"not-an-ip"}, nil},
+		{"X-Forwarded-For with a port", []string{"203.0.113.7:5000"}, nil},
+		{"X-Forwarded-For empty entry", []string{"203.0.113.7, "}, nil},
+		{"X-Forwarded-For empty", []string{""}, nil},
+		{"X-Forwarded-Proto unknown scheme", nil, []string{"ftp"}},
+		{"X-Forwarded-Proto list", nil, []string{"https, http"}},
+		{"X-Forwarded-Proto repeated", nil, []string{"https", "https"}},
+	} {
+		_, err := Resolve(request("10.60.1.33:41000", tt.xff, tt.xfp), trusted)
+		if !errors.Is(err, ErrInvalidHeader) {
+			t.Errorf("%s: Resolve error = %v, want ErrInvalidHeader", tt.name, err)
+		}
+	}
+}
+
+func TestResolveBadPeerAddress(t *testing.T) {
+	t.Parallel()
+	r := request("@", nil, nil)
+	_, err := Resolve(r, nil)
+	if err == nil || errors.Is(err, ErrInvalidHeader) {
+		t.Errorf("Resolve error = %v, want a peer address error", err)
+	}
+}
+
+func request(peer string, xff, xfp []string) *http.Request {
+	r := httptest.NewRequest(http.MethodGet, "/", nil)
+	r.RemoteAddr = peer
+	for _, v := range xff {
+		r.Header.Add(HeaderFor, v)
+	}
+	for _, v := range xfp {
+		r.Header.Add(HeaderProto, v)
+	}
+	return r
+}
+
+func TestContextHelpers(t *testing.T) {
+	t.Parallel()
+	if _, ok := ClientIP(context.Background()); ok {
+		t.Error("ClientIP ok on an unresolved context")
+	}
+	if _, ok := Scheme(context.Background()); ok {
+		t.Error("Scheme ok on an unresolved context")
+	}
+	ctx := NewContext(context.Background(), Origin{ClientIP: netip.MustParseAddr("203.0.113.7"), Scheme: "https"})
+	if ip, ok := ClientIP(ctx); !ok || ip.String() != "203.0.113.7" {
+		t.Errorf("ClientIP = %s %v, want 203.0.113.7 true", ip, ok)
+	}
+	if s, ok := Scheme(ctx); !ok || s != "https" {
+		t.Errorf("Scheme = %q %v, want https true", s, ok)
+	}
+}
+
+func TestLogHandler(t *testing.T) {
+	t.Parallel()
+	var buf bytes.Buffer
+	logger := slog.New(LogHandler(slog.NewTextHandler(&buf, nil))).With("component", "test")
+	ctx := NewContext(context.Background(), Origin{ClientIP: netip.MustParseAddr("203.0.113.7"), Scheme: "https"})
+
+	logger.InfoContext(ctx, "resolved")
+	logger.InfoContext(context.Background(), "unresolved")
+
+	lines := strings.Split(strings.TrimSpace(buf.String()), "\n")
+	if len(lines) != 2 {
+		t.Fatalf("logged %d lines, want 2: %q", len(lines), buf.String())
+	}
+	if !strings.Contains(lines[0], "client_ip=203.0.113.7") || !strings.Contains(lines[0], "component=test") {
+		t.Errorf("resolved line = %q, want client_ip and the With attribute", lines[0])
+	}
+	if strings.Contains(lines[1], "client_ip") {
+		t.Errorf("unresolved line = %q, want no client_ip", lines[1])
+	}
+}

internal/household/defaults.go

@@ -0,0 +1,93 @@
+package household
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/db"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+// DefaultPersonaPrompt is the default AI system prompt (CTXD PROMPTS.MD §4).
+// SeedAISettings stores it on first boot and the Admin reset restores it.
+const DefaultPersonaPrompt = `You are MealQuest, a dinner planning assistant for one household. Suggest dinners
+similar to their regular rotation, nudging them to try something a little new each
+week. Prefer weeknight-friendly recipes with common grocery-store ingredients.
+Flag crock pot meals and anything 30 minutes or less as "quick". Keep explanations
+short, warm and specific — mention the household's own regular dinners when you
+explain why something fits. Never suggest a dinner they already make or have
+declined.`
+
+// Seed values for the AI settings (CTXD CONTEXT.MD). The base URL and model
+// are empty until the household picks a provider preset; there is no key.
+const (
+	SeedAIProvider    = "anthropic"
+	SeedAIBaseURL     = ""
+	SeedAIModel       = ""
+	SeedAITemperature = 0.7
+)
+
+// seedNotificationPrefs are the notification preferences for a new
+// household, one per event: push for every event, chat only for the plan
+// and the shopping list.
+var seedNotificationPrefs = []struct {
+	Event      string
+	Push, Chat bool
+}{
+	{Event: "plan_ready", Push: true, Chat: true},
+	{Event: "list_ready", Push: true, Chat: true},
+	{Event: "day_of_reminder", Push: true, Chat: false},
+	{Event: "new_suggestions", Push: true, Chat: false},
+	{Event: "rotation_review", Push: true, Chat: false},
+}
+
+// SeedAISettings creates the AI settings row with the seed values and
+// DefaultPersonaPrompt if it does not exist. An existing row is never
+// changed.
+func SeedAISettings(ctx context.Context, st *store.Store) error {
+	return st.WithTx(ctx, func(tx *sql.Tx) error {
+		q := db.New(tx)
+		_, err := q.GetAISettings(ctx)
+		if err == nil {
+			return nil
+		}
+		if !errors.Is(err, sql.ErrNoRows) {
+			return fmt.Errorf("household: read AI settings: %w", err)
+		}
+		now := store.Now().String()
+		_, err = q.UpsertAISettings(ctx, db.UpsertAISettingsParams{
+			Provider:     SeedAIProvider,
+			BaseUrl:      SeedAIBaseURL,
+			Model:        SeedAIModel,
+			Temperature:  SeedAITemperature,
+			SystemPrompt: sql.NullString{String: DefaultPersonaPrompt, Valid: true},
+			CreatedAt:    now,
+			UpdatedAt:    now,
+		})
+		if err != nil {
+			return fmt.Errorf("household: seed AI settings: %w", err)
+		}
+		return nil
+	})
+}
+
+// SeedNotificationPrefs creates the seed notification preference row of
+// every event that has none. Existing rows are never changed.
+func SeedNotificationPrefs(ctx context.Context, st *store.Store) error {
+	return st.WithTx(ctx, func(tx *sql.Tx) error {
+		now := store.Now().String()
+		for _, p := range seedNotificationPrefs {
+			_, err := tx.ExecContext(ctx,
+				`INSERT INTO notification_prefs (event, push, chat, created_at, updated_at)
+				VALUES (?, ?, ?, ?, ?)
+				ON CONFLICT (event) DO NOTHING`,
+				p.Event, p.Push, p.Chat, now, now)
+			if err != nil {
+				return fmt.Errorf("household: seed notification preference %s: %w", p.Event, err)
+			}
+		}
+		return nil
+	})
+}

internal/household/defaults_test.go

@@ -0,0 +1,220 @@
+package household
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/db"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+// notificationPrefs returns the stored notification preferences by event as
+// [push, chat].
+func notificationPrefs(t *testing.T, st *store.Store) map[string][2]int64 {
+	t.Helper()
+	rows, err := st.Reader.QueryContext(context.Background(), `SELECT event, push, chat FROM notification_prefs`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rows.Close()
+	got := make(map[string][2]int64)
+	for rows.Next() {
+		var event string
+		var push, chat int64
+		if err := rows.Scan(&event, &push, &chat); err != nil {
+			t.Fatal(err)
+		}
+		got[event] = [2]int64{push, chat}
+	}
+	if err := rows.Err(); err != nil {
+		t.Fatal(err)
+	}
+	return got
+}
+
+func TestSeedAISettingsCreatesRow(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	st := migratedStore(t, t.TempDir())
+
+	if err := SeedAISettings(ctx, st); err != nil {
+		t.Fatal(err)
+	}
+	got, err := db.New(st.Reader).GetAISettings(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := db.AiSetting{
+		ID:           1,
+		Provider:     "anthropic",
+		BaseUrl:      "",
+		Model:        "",
+		Temperature:  0.7,
+		SystemPrompt: sql.NullString{String: DefaultPersonaPrompt, Valid: true},
+		CreatedAt:    got.CreatedAt,
+		UpdatedAt:    got.UpdatedAt,
+	}
+	if got.ID != want.ID || got.Provider != want.Provider || got.BaseUrl != want.BaseUrl ||
+		got.Model != want.Model || got.Temperature != want.Temperature || got.SystemPrompt != want.SystemPrompt ||
+		got.ApiKeyCt != nil || got.ApiKeyLast4.Valid || got.KeyVerifiedAt.Valid {
+		t.Errorf("seeded AI settings = %+v\nwant %+v", got, want)
+	}
+	var created store.Timestamp
+	if err := created.Scan(got.CreatedAt); err != nil {
+		t.Errorf("created_at: %v", err)
+	}
+	if got.UpdatedAt != got.CreatedAt {
+		t.Errorf("updated_at = %q, want created_at %q", got.UpdatedAt, got.CreatedAt)
+	}
+}
+
+func TestDefaultPersonaPrompt(t *testing.T) {
+	t.Parallel()
+	const want = "You are MealQuest, a dinner planning assistant for one household. Suggest dinners\n" +
+		"similar to their regular rotation, nudging them to try something a little new each\n" +
+		"week. Prefer weeknight-friendly recipes with common grocery-store ingredients.\n" +
+		"Flag crock pot meals and anything 30 minutes or less as \"quick\". Keep explanations\n" +
+		"short, warm and specific — mention the household's own regular dinners when you\n" +
+		"explain why something fits. Never suggest a dinner they already make or have\n" +
+		"declined."
+	if DefaultPersonaPrompt != want {
+		t.Errorf("DefaultPersonaPrompt = %q\nwant %q", DefaultPersonaPrompt, want)
+	}
+}
+
+func TestSeedAISettingsNeverOverwrites(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	dir := t.TempDir()
+
+	// First boot seeds; the household then configures a provider.
+	first := migratedStore(t, dir)
+	if err := SeedAISettings(ctx, first); err != nil {
+		t.Fatal(err)
+	}
+	seeded, err := db.New(first.Reader).GetAISettings(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	changed, err := db.New(first.Writer).UpsertAISettings(ctx, db.UpsertAISettingsParams{
+		Provider:      "ollama",
+		BaseUrl:       "http://ollama:11434",
+		Model:         "llama3",
+		Temperature:   0.2,
+		SystemPrompt:  sql.NullString{String: "Be brief.", Valid: true},
+		ApiKeyCt:      []byte{1, 2, 3},
+		ApiKeyLast4:   sql.NullString{String: "wxyz", Valid: true},
+		KeyVerifiedAt: sql.NullString{String: store.Now().String(), Valid: true},
+		CreatedAt:     seeded.CreatedAt,
+		UpdatedAt:     store.Now().String(),
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := first.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	// A later boot reopens the same database and seeds again.
+	st := migratedStore(t, dir)
+	if err := SeedAISettings(ctx, st); err != nil {
+		t.Fatalf("reboot: %v", err)
+	}
+	got, err := db.New(st.Reader).GetAISettings(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.Provider != changed.Provider || got.BaseUrl != changed.BaseUrl || got.Model != changed.Model ||
+		got.Temperature != changed.Temperature || got.SystemPrompt != changed.SystemPrompt ||
+		string(got.ApiKeyCt) != string(changed.ApiKeyCt) || got.ApiKeyLast4 != changed.ApiKeyLast4 ||
+		got.KeyVerifiedAt != changed.KeyVerifiedAt || got.CreatedAt != changed.CreatedAt || got.UpdatedAt != changed.UpdatedAt {
+		t.Errorf("reboot changed AI settings:\n got %+v\nwant %+v", got, changed)
+	}
+}
+
+func TestSeedNotificationPrefsCreatesRows(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	st := migratedStore(t, t.TempDir())
+
+	if err := SeedNotificationPrefs(ctx, st); err != nil {
+		t.Fatal(err)
+	}
+	want := map[string][2]int64{
+		"plan_ready":      {1, 1},
+		"list_ready":      {1, 1},
+		"day_of_reminder": {1, 0},
+		"new_suggestions": {1, 0},
+		"rotation_review": {1, 0},
+	}
+	got := notificationPrefs(t, st)
+	if len(got) != len(want) {
+		t.Errorf("seeded %d notification preferences, want %d: %v", len(got), len(want), got)
+	}
+	for event, w := range want {
+		if g, ok := got[event]; !ok || g != w {
+			t.Errorf("%s [push, chat] = %v (present %t), want %v", event, g, ok, w)
+		}
+	}
+
+	var created, updated string
+	err := st.Reader.QueryRowContext(ctx, `SELECT created_at, updated_at FROM notification_prefs WHERE event = 'plan_ready'`).Scan(&created, &updated)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var ts store.Timestamp
+	if err := ts.Scan(created); err != nil {
+		t.Errorf("created_at: %v", err)
+	}
+	if updated != created {
+		t.Errorf("updated_at = %q, want created_at %q", updated, created)
+	}
+}
+
+func TestSeedNotificationPrefsNeverOverwrites(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	dir := t.TempDir()
+
+	// First boot seeds; the household then changes two preferences, and one
+	// event's row goes missing.
+	first := migratedStore(t, dir)
+	if err := SeedNotificationPrefs(ctx, first); err != nil {
+		t.Fatal(err)
+	}
+	for _, stmt := range []string{
+		`UPDATE notification_prefs SET push = 0, chat = 0 WHERE event = 'plan_ready'`,
+		`UPDATE notification_prefs SET chat = 1 WHERE event = 'rotation_review'`,
+		`DELETE FROM notification_prefs WHERE event = 'new_suggestions'`,
+	} {
+		if _, err := first.Writer.ExecContext(ctx, stmt); err != nil {
+			t.Fatal(err)
+		}
+	}
+	if err := first.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	// A later boot keeps the changed rows and seeds only the missing one.
+	st := migratedStore(t, dir)
+	if err := SeedNotificationPrefs(ctx, st); err != nil {
+		t.Fatalf("reboot: %v", err)
+	}
+	want := map[string][2]int64{
+		"plan_ready":      {0, 0},
+		"list_ready":      {1, 1},
+		"day_of_reminder": {1, 0},
+		"new_suggestions": {1, 0},
+		"rotation_review": {1, 1},
+	}
+	got := notificationPrefs(t, st)
+	if len(got) != len(want) {
+		t.Errorf("%d notification preferences after reboot, want %d: %v", len(got), len(want), got)
+	}
+	for event, w := range want {
+		if g, ok := got[event]; !ok || g != w {
+			t.Errorf("after reboot %s [push, chat] = %v (present %t), want %v", event, g, ok, w)
+		}
+	}
+}

internal/household/settings.go

@@ -0,0 +1,340 @@
+package household
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"regexp"
+	"strings"
+	"sync"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/db"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+// Seed values for a new household (CTXD CONTEXT.MD). Days count from
+// Sunday = 0, as time.Weekday does.
+const (
+	SeedDinnerTime       = "17:30"
+	SeedReminderTime     = "16:30"
+	SeedReviewTime       = "09:00" // rotation check
+	SeedPlanDraftDow     = 5       // Friday
+	SeedPlanDraftTime    = "09:00"
+	SeedSuggestionsDow   = 0 // Sunday
+	SeedSuggestionsTime  = "08:00"
+	SeedChatAutosendDow  = 6 // Saturday
+	SeedChatAutosendTime = "08:00"
+)
+
+// ErrNoDefaultZone is returned by SeedSettings when the household settings
+// do not exist yet and no default zone was configured to create them with.
+var ErrNoDefaultZone = errors.New("household settings do not exist yet and no default time zone is configured")
+
+// ErrInvalidDefaultZone is returned by SeedSettings when the household
+// settings do not exist yet and the configured default zone cannot be loaded.
+var ErrInvalidDefaultZone = errors.New("household settings do not exist yet and the default time zone is invalid")
+
+// Settings are the shared household settings. Times are household-local
+// 24-hour HH:MM in Timezone; days of the week count from Sunday = 0.
+type Settings struct {
+	Timezone              string  `json:"timezone"`
+	DinnerTime            string  `json:"dinner_time"`
+	ReminderTime          string  `json:"reminder_time"`
+	ReviewTime            string  `json:"review_time"`
+	PlanDraftDow          int     `json:"plan_draft_dow"`
+	PlanDraftTime         string  `json:"plan_draft_time"`
+	SuggestionsDow        int     `json:"suggestions_dow"`
+	SuggestionsTime       string  `json:"suggestions_time"`
+	ChatAutosendDow       int     `json:"chat_autosend_dow"`
+	ChatAutosendTime      string  `json:"chat_autosend_time"`
+	OnboardingCompletedAt *string `json:"onboarding_completed_at"`
+	UpdatesSeenAt         *string `json:"updates_seen_at"`
+	UpdatedBy             *string `json:"updated_by"`
+	CreatedAt             string  `json:"created_at"`
+	UpdatedAt             string  `json:"updated_at"`
+}
+
+// SettingsPatch changes the household settings. Nil fields are left as they
+// are.
+type SettingsPatch struct {
+	Timezone         *string
+	DinnerTime       *string
+	ReminderTime     *string
+	ReviewTime       *string
+	PlanDraftDow     *int
+	PlanDraftTime    *string
+	SuggestionsDow   *int
+	SuggestionsTime  *string
+	ChatAutosendDow  *int
+	ChatAutosendTime *string
+}
+
+// Problem is one invalid field of a SettingsPatch, named by its JSON key.
+type Problem struct {
+	Field  string
+	Reason string
+}
+
+// ValidationError lists every invalid field of a SettingsPatch.
+type ValidationError struct {
+	Problems []Problem
+}
+
+func (e *ValidationError) Error() string {
+	parts := make([]string, len(e.Problems))
+	for i, p := range e.Problems {
+		parts[i] = p.Field + ": " + p.Reason
+	}
+	return "invalid household settings: " + strings.Join(parts, "; ")
+}
+
+// SeedSettings creates the household settings row with zone defaultTZ and the
+// seed times and days if it does not exist. An existing row is never changed,
+// and defaultTZ is then ignored, valid or not. With no row, an empty
+// defaultTZ is ErrNoDefaultZone and an unloadable one ErrInvalidDefaultZone.
+func SeedSettings(ctx context.Context, st *store.Store, defaultTZ string) error {
+	return st.WithTx(ctx, func(tx *sql.Tx) error {
+		q := db.New(tx)
+		_, err := q.GetHouseholdSettings(ctx)
+		if err == nil {
+			return nil
+		}
+		if !errors.Is(err, sql.ErrNoRows) {
+			return fmt.Errorf("household: read settings: %w", err)
+		}
+		if defaultTZ == "" {
+			return ErrNoDefaultZone
+		}
+		if _, err := LoadZone(defaultTZ); err != nil {
+			return fmt.Errorf("%w: %v", ErrInvalidDefaultZone, err)
+		}
+		now := store.Now().String()
+		_, err = q.UpsertHouseholdSettings(ctx, db.UpsertHouseholdSettingsParams{
+			Timezone:         defaultTZ,
+			DinnerTime:       SeedDinnerTime,
+			ReminderTime:     SeedReminderTime,
+			ReviewTime:       SeedReviewTime,
+			PlanDraftDow:     SeedPlanDraftDow,
+			PlanDraftTime:    SeedPlanDraftTime,
+			SuggestionsDow:   SeedSuggestionsDow,
+			SuggestionsTime:  SeedSuggestionsTime,
+			ChatAutosendDow:  SeedChatAutosendDow,
+			ChatAutosendTime: SeedChatAutosendTime,
+			CreatedAt:        now,
+			UpdatedAt:        now,
+		})
+		if err != nil {
+			return fmt.Errorf("household: seed settings: %w", err)
+		}
+		return nil
+	})
+}
+
+// SettingsService reads and changes the household settings, and tells
+// in-process subscribers (the scheduler) about every change.
+type SettingsService struct {
+	st *store.Store
+
+	// updateMu serialises Update with its publish, so subscribers see
+	// changes in commit order.
+	updateMu sync.Mutex
+
+	subsMu sync.Mutex
+	subs   map[int]func(Settings)
+	nextID int
+}
+
+// NewSettingsService returns a service over st. Call SeedSettings first.
+func NewSettingsService(st *store.Store) *SettingsService {
+	return &SettingsService{st: st, subs: make(map[int]func(Settings))}
+}
+
+// Get returns the household settings.
+func (s *SettingsService) Get(ctx context.Context) (Settings, error) {
+	row, err := db.New(s.st.Reader).GetHouseholdSettings(ctx)
+	if err != nil {
+		return Settings{}, fmt.Errorf("household: read settings: %w", err)
+	}
+	return fromRow(row), nil
+}
+
+// Update validates patch, applies it, records updatedBy (the signed-in
+// member's subject, which must not be empty) and publishes the new settings
+// to every subscriber. An invalid patch is a *ValidationError and changes
+// nothing.
+func (s *SettingsService) Update(ctx context.Context, patch SettingsPatch, updatedBy string) (Settings, error) {
+	if updatedBy == "" {
+		return Settings{}, errors.New("household: update settings: no member to record as updated_by")
+	}
+	if err := patch.validate(); err != nil {
+		return Settings{}, err
+	}
+
+	s.updateMu.Lock()
+	defer s.updateMu.Unlock()
+
+	var row db.HouseholdSetting
+	err := s.st.WithTx(ctx, func(tx *sql.Tx) error {
+		q := db.New(tx)
+		cur, err := q.GetHouseholdSettings(ctx)
+		if err != nil {
+			return fmt.Errorf("household: read settings: %w", err)
+		}
+		p := db.UpsertHouseholdSettingsParams{
+			Timezone:              cur.Timezone,
+			DinnerTime:            cur.DinnerTime,
+			ReminderTime:          cur.ReminderTime,
+			ReviewTime:            cur.ReviewTime,
+			PlanDraftDow:          cur.PlanDraftDow,
+			PlanDraftTime:         cur.PlanDraftTime,
+			SuggestionsDow:        cur.SuggestionsDow,
+			SuggestionsTime:       cur.SuggestionsTime,
+			ChatAutosendDow:       cur.ChatAutosendDow,
+			ChatAutosendTime:      cur.ChatAutosendTime,
+			OnboardingCompletedAt: cur.OnboardingCompletedAt,
+			UpdatesSeenAt:         cur.UpdatesSeenAt,
+			UpdatedBy:             sql.NullString{String: updatedBy, Valid: true},
+			CreatedAt:             cur.CreatedAt,
+			UpdatedAt:             store.Now().String(),
+		}
+		setString(&p.Timezone, patch.Timezone)
+		setString(&p.DinnerTime, patch.DinnerTime)
+		setString(&p.ReminderTime, patch.ReminderTime)
+		setString(&p.ReviewTime, patch.ReviewTime)
+		setDow(&p.PlanDraftDow, patch.PlanDraftDow)
+		setString(&p.PlanDraftTime, patch.PlanDraftTime)
+		setDow(&p.SuggestionsDow, patch.SuggestionsDow)
+		setString(&p.SuggestionsTime, patch.SuggestionsTime)
+		setDow(&p.ChatAutosendDow, patch.ChatAutosendDow)
+		setString(&p.ChatAutosendTime, patch.ChatAutosendTime)
+		row, err = q.UpsertHouseholdSettings(ctx, p)
+		if err != nil {
+			return fmt.Errorf("household: update settings: %w", err)
+		}
+		return nil
+	})
+	if err != nil {
+		return Settings{}, err
+	}
+
+	settings := fromRow(row)
+	s.publish(settings)
+	return settings, nil
+}
+
+// Subscribe registers fn to receive the new settings after every successful
+// Update. fn runs synchronously on the updating goroutine, so it must return
+// promptly and must not call Update. The returned function unsubscribes fn.
+func (s *SettingsService) Subscribe(fn func(Settings)) (unsubscribe func()) {
+	s.subsMu.Lock()
+	defer s.subsMu.Unlock()
+	id := s.nextID
+	s.nextID++
+	s.subs[id] = fn
+	return func() {
+		s.subsMu.Lock()
+		defer s.subsMu.Unlock()
+		delete(s.subs, id)
+	}
+}
+
+func (s *SettingsService) publish(settings Settings) {
+	s.subsMu.Lock()
+	fns := make([]func(Settings), 0, len(s.subs))
+	for _, fn := range s.subs {
+		fns = append(fns, fn)
+	}
+	s.subsMu.Unlock()
+	for _, fn := range fns {
+		fn(settings)
+	}
+}
+
+func (p SettingsPatch) validate() error {
+	var problems []Problem
+	fail := func(field, reason string) {
+		problems = append(problems, Problem{Field: field, Reason: reason})
+	}
+	if p == (SettingsPatch{}) {
+		fail("settings", "no settings to change")
+	}
+	if p.Timezone != nil {
+		if _, err := LoadZone(*p.Timezone); err != nil {
+			fail("timezone", err.Error())
+		}
+	}
+	for _, t := range []struct {
+		field string
+		value *string
+	}{
+		{"dinner_time", p.DinnerTime},
+		{"reminder_time", p.ReminderTime},
+		{"review_time", p.ReviewTime},
+		{"plan_draft_time", p.PlanDraftTime},
+		{"suggestions_time", p.SuggestionsTime},
+		{"chat_autosend_time", p.ChatAutosendTime},
+	} {
+		if t.value != nil && !clockTime.MatchString(*t.value) {
+			fail(t.field, fmt.Sprintf("invalid time %q (want 24-hour HH:MM, 00:00-23:59)", *t.value))
+		}
+	}
+	for _, d := range []struct {
+		field string
+		value *int
+	}{
+		{"plan_draft_dow", p.PlanDraftDow},
+		{"suggestions_dow", p.SuggestionsDow},
+		{"chat_autosend_dow", p.ChatAutosendDow},
+	} {
+		if d.value != nil && (*d.value < 0 || *d.value > 6) {
+			fail(d.field, fmt.Sprintf("invalid day of the week %d (want 0-6, Sunday = 0)", *d.value))
+		}
+	}
+	if len(problems) > 0 {
+		return &ValidationError{Problems: problems}
+	}
+	return nil
+}
+
+// clockTime matches a zero-padded 24-hour HH:MM time.
+var clockTime = regexp.MustCompile(`^([01][0-9]|2[0-3]):[0-5][0-9]$`)
+
+func setString(dst *string, v *string) {
+	if v != nil {
+		*dst = *v
+	}
+}
+
+func setDow(dst *int64, v *int) {
+	if v != nil {
+		*dst = int64(*v)
+	}
+}
+
+func fromRow(r db.HouseholdSetting) Settings {
+	return Settings{
+		Timezone:              r.Timezone,
+		DinnerTime:            r.DinnerTime,
+		ReminderTime:          r.ReminderTime,
+		ReviewTime:            r.ReviewTime,
+		PlanDraftDow:          int(r.PlanDraftDow),
+		PlanDraftTime:         r.PlanDraftTime,
+		SuggestionsDow:        int(r.SuggestionsDow),
+		SuggestionsTime:       r.SuggestionsTime,
+		ChatAutosendDow:       int(r.ChatAutosendDow),
+		ChatAutosendTime:      r.ChatAutosendTime,
+		OnboardingCompletedAt: nullable(r.OnboardingCompletedAt),
+		UpdatesSeenAt:         nullable(r.UpdatesSeenAt),
+		UpdatedBy:             nullable(r.UpdatedBy),
+		CreatedAt:             r.CreatedAt,
+		UpdatedAt:             r.UpdatedAt,
+	}
+}
+
+func nullable(s sql.NullString) *string {
+	if !s.Valid {
+		return nil
+	}
+	return &s.String
+}

internal/household/settings_test.go

@@ -0,0 +1,374 @@
+package household
+
+import (
+	"context"
+	"errors"
+	"slices"
+	"sync"
+	"testing"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+// migratedStore opens a temp store in dir migrated with the embedded
+// migrations, closed when the test ends.
+func migratedStore(t *testing.T, dir string) *store.Store {
+	t.Helper()
+	ctx := context.Background()
+	st, err := store.Open(ctx, dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := st.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := store.Migrate(ctx, st.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	return st
+}
+
+// seededService returns a settings service over a migrated temp database
+// seeded with zone America/New_York.
+func seededService(t *testing.T) *SettingsService {
+	t.Helper()
+	st := migratedStore(t, t.TempDir())
+	if err := SeedSettings(context.Background(), st, "America/New_York"); err != nil {
+		t.Fatal(err)
+	}
+	return NewSettingsService(st)
+}
+
+func ptr[T any](v T) *T { return &v }
+
+func TestSeedSettingsCreatesRow(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	st := migratedStore(t, t.TempDir())
+
+	if err := SeedSettings(ctx, st, "America/Chicago"); err != nil {
+		t.Fatal(err)
+	}
+	got, err := NewSettingsService(st).Get(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := Settings{
+		Timezone:         "America/Chicago",
+		DinnerTime:       "17:30",
+		ReminderTime:     "16:30",
+		ReviewTime:       "09:00",
+		PlanDraftDow:     5,
+		PlanDraftTime:    "09:00",
+		SuggestionsDow:   0,
+		SuggestionsTime:  "08:00",
+		ChatAutosendDow:  6,
+		ChatAutosendTime: "08:00",
+		CreatedAt:        got.CreatedAt,
+		UpdatedAt:        got.UpdatedAt,
+	}
+	if !equalSettings(got, want) {
+		t.Errorf("seeded settings = %+v\nwant %+v", got, want)
+	}
+	var created store.Timestamp
+	if err := created.Scan(got.CreatedAt); err != nil {
+		t.Errorf("created_at: %v", err)
+	}
+	if got.UpdatedAt != got.CreatedAt {
+		t.Errorf("updated_at = %q, want created_at %q", got.UpdatedAt, got.CreatedAt)
+	}
+}
+
+func TestSeedSettingsNeverOverwrites(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	dir := t.TempDir()
+
+	// First boot seeds; the household then changes a setting.
+	first := migratedStore(t, dir)
+	if err := SeedSettings(ctx, first, "America/Chicago"); err != nil {
+		t.Fatal(err)
+	}
+	changed, err := NewSettingsService(first).Update(ctx, SettingsPatch{DinnerTime: ptr("18:15")}, "sam")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := first.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	// Later boots reopen the same database with a different default zone,
+	// an invalid one and none at all.
+	for _, defaultTZ := range []string{"Europe/London", "Mars/Olympus_Mons", ""} {
+		st := migratedStore(t, dir)
+		if err := SeedSettings(ctx, st, defaultTZ); err != nil {
+			t.Fatalf("reboot with default zone %q: %v", defaultTZ, err)
+		}
+		got, err := NewSettingsService(st).Get(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if !equalSettings(got, changed) {
+			t.Errorf("reboot with default zone %q changed settings:\n got %+v\nwant %+v", defaultTZ, got, changed)
+		}
+		if err := st.Close(); err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func TestSeedSettingsRequiresDefaultZone(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+
+	tests := []struct {
+		name      string
+		defaultTZ string
+		is        error
+	}{
+		{"unset", "", ErrNoDefaultZone},
+		{"not an IANA zone", "Mars/Olympus_Mons", ErrInvalidDefaultZone},
+		{"Local", "Local", ErrInvalidDefaultZone},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			st := migratedStore(t, t.TempDir())
+			err := SeedSettings(ctx, st, tt.defaultTZ)
+			if err == nil {
+				t.Fatal("SeedSettings succeeded")
+			}
+			if !errors.Is(err, tt.is) {
+				t.Errorf("error = %v, want %v", err, tt.is)
+			}
+			if _, err := NewSettingsService(st).Get(ctx); err == nil {
+				t.Error("a settings row was created despite the error")
+			}
+		})
+	}
+}
+
+func TestUpdateAppliesPatchAndRecordsUpdatedBy(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	svc := seededService(t)
+	before, err := svc.Get(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	got, err := svc.Update(ctx, SettingsPatch{
+		Timezone:         ptr("Europe/Paris"),
+		DinnerTime:       ptr("19:00"),
+		ReminderTime:     ptr("00:00"),
+		ReviewTime:       ptr("23:59"),
+		PlanDraftDow:     ptr(4),
+		PlanDraftTime:    ptr("10:30"),
+		SuggestionsDow:   ptr(1),
+		SuggestionsTime:  ptr("07:45"),
+		ChatAutosendDow:  ptr(0),
+		ChatAutosendTime: ptr("12:00"),
+	}, "sam")
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := Settings{
+		Timezone:         "Europe/Paris",
+		DinnerTime:       "19:00",
+		ReminderTime:     "00:00",
+		ReviewTime:       "23:59",
+		PlanDraftDow:     4,
+		PlanDraftTime:    "10:30",
+		SuggestionsDow:   1,
+		SuggestionsTime:  "07:45",
+		ChatAutosendDow:  0,
+		ChatAutosendTime: "12:00",
+		UpdatedBy:        ptr("sam"),
+		CreatedAt:        before.CreatedAt,
+		UpdatedAt:        got.UpdatedAt,
+	}
+	if !equalSettings(got, want) {
+		t.Errorf("Update = %+v\nwant %+v", got, want)
+	}
+	if got.UpdatedAt < before.UpdatedAt {
+		t.Errorf("updated_at went back: %s < %s", got.UpdatedAt, before.UpdatedAt)
+	}
+	stored, err := svc.Get(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !equalSettings(stored, got) {
+		t.Errorf("stored = %+v\nwant %+v", stored, got)
+	}
+
+	// A partial patch changes only its fields and records its own member.
+	got, err = svc.Update(ctx, SettingsPatch{DinnerTime: ptr("18:00")}, "alex")
+	if err != nil {
+		t.Fatal(err)
+	}
+	want.DinnerTime = "18:00"
+	want.UpdatedBy = ptr("alex")
+	want.UpdatedAt = got.UpdatedAt
+	if !equalSettings(got, want) {
+		t.Errorf("partial Update = %+v\nwant %+v", got, want)
+	}
+}
+
+func TestUpdateRequiresMember(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	svc := seededService(t)
+	notified := 0
+	svc.Subscribe(func(Settings) { notified++ })
+
+	if _, err := svc.Update(ctx, SettingsPatch{DinnerTime: ptr("18:00")}, ""); err == nil {
+		t.Fatal("Update with no member succeeded")
+	}
+	got, err := svc.Get(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.DinnerTime != SeedDinnerTime || got.UpdatedBy != nil || notified != 0 {
+		t.Errorf("Update with no member changed settings or notified: %+v, notified %d", got, notified)
+	}
+}
+
+func TestUpdateValidation(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+
+	tests := []struct {
+		name   string
+		patch  SettingsPatch
+		fields []string
+	}{
+		{"empty patch", SettingsPatch{}, []string{"settings"}},
+		{"unknown zone", SettingsPatch{Timezone: ptr("Mars/Olympus_Mons")}, []string{"timezone"}},
+		{"empty zone", SettingsPatch{Timezone: ptr("")}, []string{"timezone"}},
+		{"Local zone", SettingsPatch{Timezone: ptr("Local")}, []string{"timezone"}},
+		{"zone path traversal", SettingsPatch{Timezone: ptr("../../etc/passwd")}, []string{"timezone"}},
+		{"hour 24", SettingsPatch{DinnerTime: ptr("24:00")}, []string{"dinner_time"}},
+		{"minute 60", SettingsPatch{ReminderTime: ptr("16:60")}, []string{"reminder_time"}},
+		{"unpadded hour", SettingsPatch{ReviewTime: ptr("9:00")}, []string{"review_time"}},
+		{"seconds", SettingsPatch{PlanDraftTime: ptr("09:00:00")}, []string{"plan_draft_time"}},
+		{"12-hour", SettingsPatch{SuggestionsTime: ptr("08:00 AM")}, []string{"suggestions_time"}},
+		{"empty time", SettingsPatch{ChatAutosendTime: ptr("")}, []string{"chat_autosend_time"}},
+		{"dow 7", SettingsPatch{PlanDraftDow: ptr(7)}, []string{"plan_draft_dow"}},
+		{"dow -1", SettingsPatch{SuggestionsDow: ptr(-1)}, []string{"suggestions_dow"}},
+		{"dow 100", SettingsPatch{ChatAutosendDow: ptr(100)}, []string{"chat_autosend_dow"}},
+		{
+			"every problem is reported",
+			SettingsPatch{Timezone: ptr("Nowhere"), DinnerTime: ptr("5pm"), PlanDraftDow: ptr(9)},
+			[]string{"timezone", "dinner_time", "plan_draft_dow"},
+		},
+		{
+			"valid fields do not mask an invalid one",
+			SettingsPatch{DinnerTime: ptr("18:00"), ChatAutosendDow: ptr(8)},
+			[]string{"chat_autosend_dow"},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			svc := seededService(t)
+			before, err := svc.Get(ctx)
+			if err != nil {
+				t.Fatal(err)
+			}
+			published := 0
+			svc.Subscribe(func(Settings) { published++ })
+
+			_, err = svc.Update(ctx, tt.patch, "sam")
+			var verr *ValidationError
+			if !errors.As(err, &verr) {
+				t.Fatalf("Update error = %v, want *ValidationError", err)
+			}
+			var fields []string
+			for _, p := range verr.Problems {
+				fields = append(fields, p.Field)
+			}
+			if !slices.Equal(fields, tt.fields) {
+				t.Errorf("problem fields = %v, want %v", fields, tt.fields)
+			}
+
+			after, err := svc.Get(ctx)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if !equalSettings(after, before) {
+				t.Errorf("invalid patch changed settings:\n got %+v\nwant %+v", after, before)
+			}
+			if published != 0 {
+				t.Errorf("invalid patch published %d times", published)
+			}
+		})
+	}
+}
+
+func TestUpdatePublishesToSubscribers(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	svc := seededService(t)
+
+	var mu sync.Mutex
+	var first, second []Settings
+	unsubscribe := svc.Subscribe(func(s Settings) {
+		mu.Lock()
+		defer mu.Unlock()
+		first = append(first, s)
+	})
+	svc.Subscribe(func(s Settings) {
+		mu.Lock()
+		defer mu.Unlock()
+		second = append(second, s)
+	})
+
+	updated, err := svc.Update(ctx, SettingsPatch{Timezone: ptr("Asia/Tokyo")}, "sam")
+	if err != nil {
+		t.Fatal(err)
+	}
+	mu.Lock()
+	if len(first) != 1 || !equalSettings(first[0], updated) {
+		t.Errorf("first subscriber got %+v, want [%+v]", first, updated)
+	}
+	if len(second) != 1 || !equalSettings(second[0], updated) {
+		t.Errorf("second subscriber got %+v, want [%+v]", second, updated)
+	}
+	mu.Unlock()
+
+	unsubscribe()
+	updated, err = svc.Update(ctx, SettingsPatch{DinnerTime: ptr("18:45")}, "sam")
+	if err != nil {
+		t.Fatal(err)
+	}
+	mu.Lock()
+	defer mu.Unlock()
+	if len(first) != 1 {
+		t.Errorf("unsubscribed subscriber got %d notifications, want 1", len(first))
+	}
+	if len(second) != 2 || !equalSettings(second[1], updated) {
+		t.Errorf("second subscriber got %+v, want a second notification %+v", second, updated)
+	}
+}
+
+func TestUpdateWithoutSeedFails(t *testing.T) {
+	t.Parallel()
+	svc := NewSettingsService(migratedStore(t, t.TempDir()))
+	if _, err := svc.Update(context.Background(), SettingsPatch{DinnerTime: ptr("18:00")}, ""); err == nil {
+		t.Fatal("Update succeeded with no settings row")
+	}
+}
+
+// equalSettings compares settings by value, following the nullable pointers.
+func equalSettings(a, b Settings) bool {
+	eq := func(x, y *string) bool { return (x == nil) == (y == nil) && (x == nil || *x == *y) }
+	if !eq(a.OnboardingCompletedAt, b.OnboardingCompletedAt) || !eq(a.UpdatesSeenAt, b.UpdatesSeenAt) || !eq(a.UpdatedBy, b.UpdatedBy) {
+		return false
+	}
+	a.OnboardingCompletedAt, a.UpdatesSeenAt, a.UpdatedBy = nil, nil, nil
+	b.OnboardingCompletedAt, b.UpdatesSeenAt, b.UpdatedBy = nil, nil, nil
+	return a == b
+}

internal/household/week.go

@@ -0,0 +1,130 @@
+// Package household owns household-local calendar and clock logic. Every
+// function works in the household's IANA zone, passed explicitly, and never
+// in the process zone (time.Local).
+//
+// Weeks are ISO weeks: Monday to Sunday, numbered by ISO 8601, so the period
+// key of 2026-12-28 is "2026-W53" and of 2027-01-04 is "2027-W01".
+//
+// Calendar arithmetic is done on UTC midnights, which have no DST, so a date
+// plus seven days is always the same weekday a week later.
+package household
+
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+// Today returns the household-local date at instant now in zone loc.
+func Today(now time.Time, loc *time.Location) store.LocalDate {
+	return store.LocalDateOf(now.In(loc))
+}
+
+// WeekStart returns the ISO Monday of the week containing d. It panics if d is
+// the zero LocalDate.
+func WeekStart(d store.LocalDate) store.LocalDate {
+	t := midnightUTC(d)
+	// Weekday counts from Sunday = 0; shift so Monday = 0 and Sunday = 6.
+	sinceMonday := (int(t.Weekday()) + 6) % 7
+	return store.LocalDateOf(t.AddDate(0, 0, -sinceMonday))
+}
+
+// WeekDays returns the seven dates Monday to Sunday of the week starting on
+// weekStart. It is an error if weekStart is not a Monday.
+func WeekDays(weekStart store.LocalDate) ([7]store.LocalDate, error) {
+	t, err := monday(weekStart)
+	if err != nil {
+		return [7]store.LocalDate{}, err
+	}
+	var days [7]store.LocalDate
+	for i := range days {
+		days[i] = store.LocalDateOf(t.AddDate(0, 0, i))
+	}
+	return days, nil
+}
+
+// WeekLabel returns the display label of the week starting on weekStart, such
+// as "Week 41 · Oct 5 – 11", or "Week 40 · Sep 28 – Oct 4" when the week
+// spans two months. It is an error if weekStart is not a Monday.
+func WeekLabel(weekStart store.LocalDate) (string, error) {
+	start, err := monday(weekStart)
+	if err != nil {
+		return "", err
+	}
+	_, week := start.ISOWeek()
+	end := start.AddDate(0, 0, 6)
+	if end.Month() == start.Month() {
+		return fmt.Sprintf("Week %d · %s – %d", week, start.Format("Jan 2"), end.Day()), nil
+	}
+	return fmt.Sprintf("Week %d · %s – %s", week, start.Format("Jan 2"), end.Format("Jan 2")), nil
+}
+
+// PeriodKey returns the ISO week key of the week containing d, such as
+// "2026-W41". The year is the ISO week-numbering year, which differs from the
+// calendar year around New Year. It panics if d is the zero LocalDate.
+func PeriodKey(d store.LocalDate) string {
+	year, week := midnightUTC(d).ISOWeek()
+	return fmt.Sprintf("%04d-W%02d", year, week)
+}
+
+// LocalTime returns the instant at which household clocks in zone loc read
+// hhmm (24-hour "HH:MM") on date d.
+//
+// DST rule: a wall time that does not exist (spring forward) or occurs twice
+// (fall back) is read with the UTC offset in effect before the transition. A
+// skipped time therefore moves forward by the length of the gap (02:30 on a
+// day clocks jump 02:00→03:00 is 03:30), and a repeated time is its first
+// occurrence. The rule assumes at most one offset change in the 48 hours
+// around the wall time, which holds for every real zone.
+func LocalTime(loc *time.Location, d store.LocalDate, hhmm string) (time.Time, error) {
+	if d.IsZero() {
+		return time.Time{}, errors.New("household: zero date")
+	}
+	clock, err := time.Parse("15:04", hhmm)
+	if err != nil || clock.Format("15:04") != hhmm {
+		return time.Time{}, fmt.Errorf("household: invalid time %q: want HH:MM", hhmm)
+	}
+	y, m, day := d.Date()
+	// wall is the wall-clock reading expressed as if it were UTC; the real
+	// instant is wall minus the zone's UTC offset at that instant.
+	wall := time.Date(y, m, day, clock.Hour(), clock.Minute(), 0, 0, time.UTC)
+	before := offset(wall.Add(-24*time.Hour), loc)
+	after := offset(wall.Add(24*time.Hour), loc)
+	early := wall.Add(-before)
+	late := wall.Add(-after)
+	// Use the post-transition offset only when the pre-transition reading is
+	// not a real wall time and the post-transition one is.
+	if offset(early, loc) != before && offset(late, loc) == after {
+		return late.In(loc), nil
+	}
+	return early.In(loc), nil
+}
+
+// offset returns the UTC offset of zone loc at instant t.
+func offset(t time.Time, loc *time.Location) time.Duration {
+	_, secs := t.In(loc).Zone()
+	return time.Duration(secs) * time.Second
+}
+
+// midnightUTC returns d as midnight UTC. It panics if d is the zero LocalDate.
+func midnightUTC(d store.LocalDate) time.Time {
+	if d.IsZero() {
+		panic("household: zero date")
+	}
+	y, m, day := d.Date()
+	return time.Date(y, m, day, 0, 0, 0, 0, time.UTC)
+}
+
+// monday returns weekStart as midnight UTC, or an error if it is not a Monday.
+func monday(weekStart store.LocalDate) (time.Time, error) {
+	if weekStart.IsZero() {
+		return time.Time{}, errors.New("household: zero week start")
+	}
+	t := midnightUTC(weekStart)
+	if t.Weekday() != time.Monday {
+		return time.Time{}, fmt.Errorf("household: week start %s is a %s, want Monday", weekStart, t.Weekday())
+	}
+	return t, nil
+}

internal/household/week_test.go

@@ -0,0 +1,311 @@
+package household
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+// TestMain runs the package with the process zone set to UTC, so any use of
+// time.Local in place of the household zone shows up as a failure.
+func TestMain(m *testing.M) {
+	time.Local = time.UTC
+	m.Run()
+}
+
+func loadZone(t *testing.T, name string) *time.Location {
+	t.Helper()
+	loc, err := time.LoadLocation(name)
+	if err != nil {
+		t.Fatalf("LoadLocation(%q): %v", name, err)
+	}
+	return loc
+}
+
+func date(t *testing.T, s string) store.LocalDate {
+	t.Helper()
+	d, err := store.ParseLocalDate(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return d
+}
+
+func utc(t *testing.T, s string) time.Time {
+	t.Helper()
+	ts, err := time.Parse(time.RFC3339, s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return ts
+}
+
+func TestTodayUsesHouseholdZone(t *testing.T) {
+	chicago := loadZone(t, "America/Chicago")
+	auckland := loadZone(t, "Pacific/Auckland")
+	for _, tc := range []struct {
+		now  string
+		loc  *time.Location
+		want string
+	}{
+		// 2026-10-05T04:30Z is Sunday 23:30 in Chicago (CDT, UTC−5) and
+		// Monday 17:30 in Auckland (NZDT, UTC+13).
+		{"2026-10-05T04:30:00Z", chicago, "2026-10-04"},
+		{"2026-10-05T04:30:00Z", auckland, "2026-10-05"},
+		// 2026-10-04T11:30Z is Sunday 06:30 in Chicago and already Monday
+		// 00:30 in Auckland.
+		{"2026-10-04T11:30:00Z", chicago, "2026-10-04"},
+		{"2026-10-04T11:30:00Z", auckland, "2026-10-05"},
+	} {
+		if got := Today(utc(t, tc.now), tc.loc).String(); got != tc.want {
+			t.Errorf("Today(%s, %s) = %s, want %s", tc.now, tc.loc, got, tc.want)
+		}
+	}
+}
+
+func TestSundayNightMondayMorningWeekAssignment(t *testing.T) {
+	for _, tc := range []struct {
+		zone, now     string
+		wantDay       string
+		wantWeekStart string
+		wantPeriodKey string
+		wantWeekday   time.Weekday
+	}{
+		// Sunday 23:59 local belongs to the week that started the previous
+		// Monday; one minute later, Monday 00:00 starts a new week.
+		{"America/Chicago", "2026-10-12T04:59:00Z", "2026-10-11", "2026-10-05", "2026-W41", time.Sunday},
+		{"America/Chicago", "2026-10-12T05:00:00Z", "2026-10-12", "2026-10-12", "2026-W42", time.Monday},
+		{"Pacific/Auckland", "2026-10-11T10:59:00Z", "2026-10-11", "2026-10-05", "2026-W41", time.Sunday},
+		{"Pacific/Auckland", "2026-10-11T11:00:00Z", "2026-10-12", "2026-10-12", "2026-W42", time.Monday},
+	} {
+		loc := loadZone(t, tc.zone)
+		now := utc(t, tc.now)
+		if wd := now.In(loc).Weekday(); wd != tc.wantWeekday {
+			t.Fatalf("%s in %s is %s, want %s", tc.now, tc.zone, wd, tc.wantWeekday)
+		}
+		today := Today(now, loc)
+		if today.String() != tc.wantDay {
+			t.Errorf("Today(%s, %s) = %s, want %s", tc.now, tc.zone, today, tc.wantDay)
+		}
+		if got := WeekStart(today).String(); got != tc.wantWeekStart {
+			t.Errorf("WeekStart(%s) = %s, want %s", today, got, tc.wantWeekStart)
+		}
+		if got := PeriodKey(today); got != tc.wantPeriodKey {
+			t.Errorf("PeriodKey(%s) = %s, want %s", today, got, tc.wantPeriodKey)
+		}
+	}
+}
+
+func TestWeekStartEveryWeekday(t *testing.T) {
+	for _, d := range []string{
+		"2026-10-05", "2026-10-06", "2026-10-07", "2026-10-08",
+		"2026-10-09", "2026-10-10", "2026-10-11",
+	} {
+		if got := WeekStart(date(t, d)).String(); got != "2026-10-05" {
+			t.Errorf("WeekStart(%s) = %s, want 2026-10-05", d, got)
+		}
+	}
+	if got := WeekStart(date(t, "2026-10-12")).String(); got != "2026-10-12" {
+		t.Errorf("WeekStart(2026-10-12) = %s, want 2026-10-12", got)
+	}
+}
+
+func TestWeekDays(t *testing.T) {
+	days, err := WeekDays(date(t, "2026-09-28"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := []string{
+		"2026-09-28", "2026-09-29", "2026-09-30", "2026-10-01",
+		"2026-10-02", "2026-10-03", "2026-10-04",
+	}
+	for i, d := range days {
+		if d.String() != want[i] {
+			t.Errorf("WeekDays[%d] = %s, want %s", i, d, want[i])
+		}
+	}
+}
+
+func TestWeekDaysAcrossDSTChange(t *testing.T) {
+	// Chicago falls back on Sunday 2026-11-01 and Auckland springs forward on
+	// Sunday 2026-09-27; neither shifts the dates of those weeks.
+	for _, tc := range []struct{ start, last string }{
+		{"2026-10-26", "2026-11-01"},
+		{"2026-09-21", "2026-09-27"},
+		{"2026-03-02", "2026-03-08"},
+	} {
+		days, err := WeekDays(date(t, tc.start))
+		if err != nil {
+			t.Fatal(err)
+		}
+		if days[0].String() != tc.start || days[6].String() != tc.last {
+			t.Errorf("WeekDays(%s) = %s … %s, want %s … %s", tc.start, days[0], days[6], tc.start, tc.last)
+		}
+	}
+}
+
+func TestISOWeekYearBoundary(t *testing.T) {
+	for _, tc := range []struct{ day, weekStart, key string }{
+		{"2026-12-27", "2026-12-21", "2026-W52"},
+		{"2026-12-28", "2026-12-28", "2026-W53"},
+		{"2026-12-31", "2026-12-28", "2026-W53"},
+		{"2027-01-01", "2026-12-28", "2026-W53"},
+		{"2027-01-03", "2026-12-28", "2026-W53"},
+		{"2027-01-04", "2027-01-04", "2027-W01"},
+		{"2027-01-10", "2027-01-04", "2027-W01"},
+		{"2026-01-01", "2025-12-29", "2026-W01"},
+		{"2026-10-07", "2026-10-05", "2026-W41"},
+	} {
+		d := date(t, tc.day)
+		if got := WeekStart(d).String(); got != tc.weekStart {
+			t.Errorf("WeekStart(%s) = %s, want %s", tc.day, got, tc.weekStart)
+		}
+		if got := PeriodKey(d); got != tc.key {
+			t.Errorf("PeriodKey(%s) = %s, want %s", tc.day, got, tc.key)
+		}
+	}
+	days, err := WeekDays(date(t, "2026-12-28"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if days[6].String() != "2027-01-03" {
+		t.Errorf("W53 Sunday = %s, want 2027-01-03", days[6])
+	}
+}
+
+func TestWeekLabel(t *testing.T) {
+	for _, tc := range []struct{ start, want string }{
+		{"2026-10-05", "Week 41 · Oct 5 – 11"},
+		{"2026-09-28", "Week 40 · Sep 28 – Oct 4"},
+		{"2026-12-28", "Week 53 · Dec 28 – Jan 3"},
+		{"2027-01-04", "Week 1 · Jan 4 – 10"},
+	} {
+		got, err := WeekLabel(date(t, tc.start))
+		if err != nil {
+			t.Fatal(err)
+		}
+		if got != tc.want {
+			t.Errorf("WeekLabel(%s) = %q, want %q", tc.start, got, tc.want)
+		}
+	}
+}
+
+func TestWeekStartRequired(t *testing.T) {
+	for _, d := range []store.LocalDate{date(t, "2026-10-07"), date(t, "2026-10-11"), {}} {
+		if _, err := WeekDays(d); err == nil {
+			t.Errorf("WeekDays(%s) succeeded, want error", d)
+		}
+		if _, err := WeekLabel(d); err == nil {
+			t.Errorf("WeekLabel(%s) succeeded, want error", d)
+		}
+	}
+}
+
+func TestZeroDatePanics(t *testing.T) {
+	for name, fn := range map[string]func(){
+		"WeekStart": func() { WeekStart(store.LocalDate{}) },
+		"PeriodKey": func() { PeriodKey(store.LocalDate{}) },
+	} {
+		func() {
+			defer func() {
+				if recover() == nil {
+					t.Errorf("%s(zero) did not panic", name)
+				}
+			}()
+			fn()
+		}()
+	}
+}
+
+func TestLocalTime(t *testing.T) {
+	for _, tc := range []struct {
+		zone, day, hhmm string
+		want            string // UTC instant
+		wantWall        string // local wall clock of the result
+	}{
+		// Ordinary days.
+		{"America/Chicago", "2026-10-05", "18:30", "2026-10-05T23:30:00Z", "2026-10-05 18:30 CDT"},
+		{"America/Chicago", "2026-12-28", "00:00", "2026-12-28T06:00:00Z", "2026-12-28 00:00 CST"},
+		{"Pacific/Auckland", "2026-10-05", "18:30", "2026-10-05T05:30:00Z", "2026-10-05 18:30 NZDT"},
+		{"Pacific/Auckland", "2026-07-01", "23:59", "2026-07-01T11:59:00Z", "2026-07-01 23:59 NZST"},
+
+		// Chicago spring forward, Sunday 2026-03-08: 02:00 CST → 03:00 CDT.
+		{"America/Chicago", "2026-03-08", "01:59", "2026-03-08T07:59:00Z", "2026-03-08 01:59 CST"},
+		{"America/Chicago", "2026-03-08", "02:00", "2026-03-08T08:00:00Z", "2026-03-08 03:00 CDT"},
+		{"America/Chicago", "2026-03-08", "02:30", "2026-03-08T08:30:00Z", "2026-03-08 03:30 CDT"},
+		{"America/Chicago", "2026-03-08", "03:00", "2026-03-08T08:00:00Z", "2026-03-08 03:00 CDT"},
+		{"America/Chicago", "2026-03-08", "03:30", "2026-03-08T08:30:00Z", "2026-03-08 03:30 CDT"},
+
+		// Chicago fall back, Sunday 2026-11-01: 02:00 CDT → 01:00 CST, so
+		// 01:00–01:59 happens twice; the first (CDT) occurrence is chosen.
+		{"America/Chicago", "2026-11-01", "00:59", "2026-11-01T05:59:00Z", "2026-11-01 00:59 CDT"},
+		{"America/Chicago", "2026-11-01", "01:00", "2026-11-01T06:00:00Z", "2026-11-01 01:00 CDT"},
+		{"America/Chicago", "2026-11-01", "01:30", "2026-11-01T06:30:00Z", "2026-11-01 01:30 CDT"},
+		{"America/Chicago", "2026-11-01", "02:00", "2026-11-01T08:00:00Z", "2026-11-01 02:00 CST"},
+
+		// Auckland spring forward, Sunday 2026-09-27: 02:00 NZST → 03:00 NZDT.
+		{"Pacific/Auckland", "2026-09-27", "01:59", "2026-09-26T13:59:00Z", "2026-09-27 01:59 NZST"},
+		{"Pacific/Auckland", "2026-09-27", "02:30", "2026-09-26T14:30:00Z", "2026-09-27 03:30 NZDT"},
+		{"Pacific/Auckland", "2026-09-27", "03:00", "2026-09-26T14:00:00Z", "2026-09-27 03:00 NZDT"},
+
+		// Auckland fall back, Sunday 2026-04-05: 03:00 NZDT → 02:00 NZST, so
+		// 02:00–02:59 happens twice; the first (NZDT) occurrence is chosen.
+		{"Pacific/Auckland", "2026-04-05", "01:59", "2026-04-04T12:59:00Z", "2026-04-05 01:59 NZDT"},
+		{"Pacific/Auckland", "2026-04-05", "02:30", "2026-04-04T13:30:00Z", "2026-04-05 02:30 NZDT"},
+		{"Pacific/Auckland", "2026-04-05", "03:00", "2026-04-04T15:00:00Z", "2026-04-05 03:00 NZST"},
+	} {
+		loc := loadZone(t, tc.zone)
+		got, err := LocalTime(loc, date(t, tc.day), tc.hhmm)
+		if err != nil {
+			t.Fatalf("LocalTime(%s, %s, %s): %v", tc.zone, tc.day, tc.hhmm, err)
+		}
+		if !got.Equal(utc(t, tc.want)) {
+			t.Errorf("LocalTime(%s, %s, %s) = %s, want %s", tc.zone, tc.day, tc.hhmm, got.UTC().Format(time.RFC3339), tc.want)
+		}
+		if wall := got.Format("2006-01-02 15:04 MST"); wall != tc.wantWall {
+			t.Errorf("LocalTime(%s, %s, %s) wall = %s, want %s", tc.zone, tc.day, tc.hhmm, wall, tc.wantWall)
+		}
+		if got.Location() != loc {
+			t.Errorf("LocalTime(%s, …) location = %s, want %s", tc.zone, got.Location(), loc)
+		}
+	}
+}
+
+func TestLocalTimeDeterministic(t *testing.T) {
+	// The same ambiguous or skipped input always resolves to the same instant.
+	chicago := loadZone(t, "America/Chicago")
+	for _, tc := range []struct{ day, hhmm string }{{"2026-03-08", "02:30"}, {"2026-11-01", "01:30"}} {
+		first, err := LocalTime(chicago, date(t, tc.day), tc.hhmm)
+		if err != nil {
+			t.Fatal(err)
+		}
+		for range 100 {
+			again, err := LocalTime(chicago, date(t, tc.day), tc.hhmm)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if !again.Equal(first) {
+				t.Fatalf("LocalTime(%s, %s) = %s then %s", tc.day, tc.hhmm, first, again)
+			}
+		}
+	}
+}
+
+func TestLocalTimeRejectsInvalid(t *testing.T) {
+	chicago := loadZone(t, "America/Chicago")
+	d := date(t, "2026-10-05")
+	for _, hhmm := range []string{
+		"", "9:30", "09:3", "24:00", "23:60", "09:30:00", "0930", " 09:30", "09:30 ", "9am", "-1:00",
+	} {
+		if got, err := LocalTime(chicago, d, hhmm); err == nil {
+			t.Errorf("LocalTime(%q) = %s, want error", hhmm, got)
+		} else if !strings.Contains(err.Error(), "HH:MM") {
+			t.Errorf("LocalTime(%q) error %q does not name the HH:MM form", hhmm, err)
+		}
+	}
+	if _, err := LocalTime(chicago, store.LocalDate{}, "09:30"); err == nil {
+		t.Error("LocalTime(zero date) succeeded")
+	}
+}

internal/household/zone.go

@@ -0,0 +1,28 @@
+package household
+
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	// Embeds the IANA zone database in the binary, so zones load the same
+	// way in a minimal image with no /usr/share/zoneinfo.
+	_ "time/tzdata"
+)
+
+// LoadZone loads the IANA zone name, such as "America/New_York". The empty
+// name and "Local", which time.LoadLocation maps to UTC and the process zone,
+// are refused: the household zone is never implied.
+func LoadZone(name string) (*time.Location, error) {
+	if name == "" {
+		return nil, errors.New("time zone is empty (want an IANA zone such as America/New_York)")
+	}
+	if name == "Local" {
+		return nil, errors.New(`time zone "Local" is not an IANA zone (want e.g. America/New_York)`)
+	}
+	loc, err := time.LoadLocation(name)
+	if err != nil {
+		return nil, fmt.Errorf("unknown time zone %q (want an IANA zone such as America/New_York)", name)
+	}
+	return loc, nil
+}

internal/jobs/builtin.go

@@ -0,0 +1,44 @@
+package jobs
+
+import (
+	"context"
+	"encoding/json"
+)
+
+// KindNoop is the framework's built-in job kind: it does no work and
+// succeeds with {"ok":true}. It is the runner's own trivial kind, as Feature
+// 09's trivial test skill is the harness's, and the startup and readiness
+// job: a noop job reaching succeeded proves the runner claims, runs and
+// records jobs.
+const KindNoop = "noop"
+
+// NoopPayload is the payload of a noop job.
+type NoopPayload struct{}
+
+// NoopResult is the result of a noop job.
+type NoopResult struct{}
+
+// PublicJSON returns {"ok":true}.
+func (NoopResult) PublicJSON() ([]byte, error) {
+	return json.Marshal(struct {
+		OK bool `json:"ok"`
+	}{OK: true})
+}
+
+func runNoop(context.Context, NoopPayload, func(NoopResult) error) (NoopResult, error) {
+	return NoopResult{}, nil
+}
+
+// Builtins enqueues the framework's built-in job kinds.
+type Builtins struct {
+	Noop *Kind[NoopPayload]
+}
+
+// RegisterBuiltins registers the framework's built-in job kinds on r.
+func RegisterBuiltins(r *Runner) (*Builtins, error) {
+	noop, err := Register(r, KindNoop, runNoop)
+	if err != nil {
+		return nil, err
+	}
+	return &Builtins{Noop: noop}, nil
+}

internal/jobs/jobs.go

@@ -0,0 +1,410 @@
+// Package jobs runs long work in the background. A job is a row in the jobs
+// table: Enqueue inserts it queued, and a fixed pool of workers claims queued
+// jobs oldest first, so the table itself is the queue and a job enqueued
+// before a restart still runs after it.
+//
+// Each job kind has one handler, registered before Start. A handler takes a
+// typed payload and returns a result implementing Public; it may publish
+// partial results while it runs. The runner stores only what a result's
+// PublicJSON returns and, for a failed job, only a failure code: either a
+// *Failure code the kind declared at registration or one of the runner's own
+// codes. Handler error text, which may quote a URL, token or response body
+// from a dependency, is never stored, returned by the API or logged.
+package jobs
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log/slog"
+	"regexp"
+	"sync"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/db"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+// Status is the state of a job.
+type Status string
+
+// Job states. A job moves queued → running → succeeded or failed.
+const (
+	StatusQueued    Status = "queued"
+	StatusRunning   Status = "running"
+	StatusSucceeded Status = "succeeded"
+	StatusFailed    Status = "failed"
+)
+
+// Failure codes the runner stores itself. A kind cannot declare them.
+const (
+	// CodeInterrupted is the error of a job a previous process left running.
+	// It is fixed framework text, not a snake-case code, so no kind can
+	// declare it.
+	CodeInterrupted = "interrupted by restart"
+	// CodeInternal is the error of a job whose handler failed with anything
+	// but a *Failure with a code its kind declared, or whose payload or
+	// result could not be encoded. The underlying error is neither stored
+	// nor logged.
+	CodeInternal = "internal_error"
+	// CodeUnknownKind is the error of a job whose kind has no handler.
+	CodeUnknownKind = "unknown_kind"
+)
+
+// Claim retry backoff. A worker whose claim fails with a database error
+// retries after claimRetryMin, doubling up to claimRetryMax, so a job queued
+// when the error clears is claimed without waiting for a wake token.
+const (
+	claimRetryMin = 50 * time.Millisecond
+	claimRetryMax = 5 * time.Second
+)
+
+// codePattern is the form of every failure code: lower-case snake case.
+var codePattern = regexp.MustCompile(`^[a-z][a-z0-9_]{0,63}$`)
+
+// ErrNotFound is returned by Get for an unknown job id.
+var ErrNotFound = errors.New("jobs: job not found")
+
+// Failure is a handler error reporting a failure code the household may
+// see. Code must be one the job's kind declared at registration; the runner
+// stores it as the job's error. Any other handler error, including a Failure
+// with an undeclared code, is stored as CodeInternal.
+type Failure struct {
+	Code string
+}
+
+func (f *Failure) Error() string { return "jobs: failure " + f.Code }
+
+// Public is a job result. PublicJSON returns the JSON the runner stores and
+// GET /api/v1/jobs/{id} returns, so a result type states exactly which of its
+// data is public; nothing else of the value is ever encoded.
+type Public interface {
+	PublicJSON() ([]byte, error)
+}
+
+// Handler runs one job with its payload. It may call publish any number of
+// times with a partial result, which Get returns while the job runs; its
+// return value is the final result. ctx is cancelled when the runner stops.
+type Handler[P any, R Public] func(ctx context.Context, payload P, publish func(partial R) error) (R, error)
+
+// Job is a job as reported by GET /api/v1/jobs/{id}. Result is the latest
+// partial or final result, and is null until the handler publishes one.
+// Error is set only on a failed job.
+type Job struct {
+	ID     string          `json:"id"`
+	Kind   string          `json:"kind"`
+	Status Status          `json:"status"`
+	Result json.RawMessage `json:"result"`
+	Error  *string         `json:"error"`
+}
+
+// runFunc is a registered Handler with its payload and results as JSON. It
+// returns the failure code to store, or "" on success; the logged reason
+// never quotes an error.
+type runFunc func(ctx context.Context, payload string, publish func(json.RawMessage) error) (result json.RawMessage, code, reason string)
+
+// Runner owns the job handlers and the worker pool.
+type Runner struct {
+	st      *store.Store
+	logger  *slog.Logger
+	workers int
+	// wake holds up to one token per worker; Enqueue adds one so an idle
+	// worker looks for the new job.
+	wake chan struct{}
+	// claim claims the oldest queued job, marking it running at now.
+	claim func(ctx context.Context, now sql.NullString) (db.Job, error)
+
+	mu       sync.Mutex
+	handlers map[string]runFunc
+	started  bool
+
+	wg sync.WaitGroup
+}
+
+// NewRunner returns a runner over st with workers concurrent workers.
+func NewRunner(st *store.Store, logger *slog.Logger, workers int) (*Runner, error) {
+	if st == nil {
+		return nil, errors.New("jobs: nil store")
+	}
+	if logger == nil {
+		return nil, errors.New("jobs: nil logger")
+	}
+	if workers < 1 {
+		return nil, fmt.Errorf("jobs: %d workers, want at least 1", workers)
+	}
+	return &Runner{
+		st:       st,
+		logger:   logger,
+		workers:  workers,
+		wake:     make(chan struct{}, workers),
+		claim:    db.New(st.Writer).ClaimNextJob,
+		handlers: make(map[string]runFunc),
+	}, nil
+}
+
+// Kind enqueues jobs of one registered kind.
+type Kind[P any] struct {
+	r    *Runner
+	name string
+}
+
+// Register makes h the handler for kind and returns the Kind that enqueues
+// its jobs. failureCodes are the *Failure codes h may report. It must be
+// called before Start, once per kind.
+func Register[P any, R Public](r *Runner, kind string, h Handler[P, R], failureCodes ...string) (*Kind[P], error) {
+	if kind == "" {
+		return nil, errors.New("jobs: register: empty kind")
+	}
+	if h == nil {
+		return nil, fmt.Errorf("jobs: register %q: nil handler", kind)
+	}
+	declared := make(map[string]bool, len(failureCodes))
+	for _, code := range failureCodes {
+		if !codePattern.MatchString(code) {
+			return nil, fmt.Errorf("jobs: register %q: failure code %q is not lower-case snake case", kind, code)
+		}
+		if code == CodeInternal || code == CodeUnknownKind {
+			return nil, fmt.Errorf("jobs: register %q: failure code %q is reserved for the runner", kind, code)
+		}
+		declared[code] = true
+	}
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if r.started {
+		return nil, fmt.Errorf("jobs: register %q: runner already started", kind)
+	}
+	if _, ok := r.handlers[kind]; ok {
+		return nil, fmt.Errorf("jobs: register %q: kind already registered", kind)
+	}
+	r.handlers[kind] = func(ctx context.Context, payload string, publish func(json.RawMessage) error) (json.RawMessage, string, string) {
+		var p P
+		dec := json.NewDecoder(bytes.NewReader([]byte(payload)))
+		dec.DisallowUnknownFields()
+		if err := dec.Decode(&p); err != nil {
+			return nil, CodeInternal, "payload does not decode"
+		}
+		result, err := h(ctx, p, func(partial R) error {
+			data, err := publicJSON(partial)
+			if err != nil {
+				return err
+			}
+			return publish(data)
+		})
+		if err != nil {
+			var failure *Failure
+			if !errors.As(err, &failure) {
+				return nil, CodeInternal, "handler error"
+			}
+			if !declared[failure.Code] {
+				return nil, CodeInternal, "undeclared failure code"
+			}
+			return nil, failure.Code, "handler failure"
+		}
+		data, err := publicJSON(result)
+		if err != nil {
+			return nil, CodeInternal, "result does not encode"
+		}
+		return data, "", ""
+	}
+	return &Kind[P]{r: r, name: kind}, nil
+}
+
+// publicJSON returns v's PublicJSON, refusing anything that is not one JSON
+// value. Its error never quotes PublicJSON's error.
+func publicJSON(v Public) (json.RawMessage, error) {
+	data, err := v.PublicJSON()
+	if err != nil || !json.Valid(data) {
+		return nil, errors.New("jobs: result has no valid public JSON")
+	}
+	return data, nil
+}
+
+// Enqueue stores a queued job with payload and returns its id. A job
+// enqueued before Start waits for it.
+func (k *Kind[P]) Enqueue(ctx context.Context, payload P) (string, error) {
+	data, err := json.Marshal(payload)
+	if err != nil {
+		return "", fmt.Errorf("jobs: enqueue %s: encode payload: %w", k.name, err)
+	}
+	id := store.NewID()
+	now := store.Now().String()
+	if err := db.New(k.r.st.Writer).CreateJob(ctx, db.CreateJobParams{
+		ID:        id,
+		Kind:      k.name,
+		Payload:   string(data),
+		CreatedAt: now,
+		UpdatedAt: now,
+	}); err != nil {
+		return "", fmt.Errorf("jobs: enqueue %s: %w", k.name, err)
+	}
+	select {
+	case k.r.wake <- struct{}{}:
+	default: // every worker already has a token and will look again
+	}
+	return id, nil
+}
+
+// Start fails every job a previous process left running with
+// CodeInterrupted, then starts the workers. They stop when ctx is cancelled;
+// Wait waits for them. A job whose handler returns an error after ctx is
+// cancelled is left running, so the next Start fails it as interrupted.
+func (r *Runner) Start(ctx context.Context) error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if r.started {
+		return errors.New("jobs: runner already started")
+	}
+	now := store.Now().String()
+	n, err := db.New(r.st.Writer).FailRunningJobs(ctx, db.FailRunningJobsParams{
+		Error: sql.NullString{String: CodeInterrupted, Valid: true},
+		Now:   sql.NullString{String: now, Valid: true},
+	})
+	if err != nil {
+		return fmt.Errorf("jobs: fail interrupted jobs: %w", err)
+	}
+	if n > 0 {
+		r.logger.WarnContext(ctx, "failed jobs interrupted by restart", "count", n)
+	}
+	r.started = true
+	for range r.workers {
+		r.wg.Add(1)
+		go r.work(ctx)
+	}
+	return nil
+}
+
+// Wait blocks until every worker has stopped.
+func (r *Runner) Wait() {
+	r.wg.Wait()
+}
+
+// Get returns the job with id, or ErrNotFound.
+func (r *Runner) Get(ctx context.Context, id string) (Job, error) {
+	row, err := db.New(r.st.Reader).GetJob(ctx, id)
+	if errors.Is(err, sql.ErrNoRows) {
+		return Job{}, ErrNotFound
+	}
+	if err != nil {
+		return Job{}, fmt.Errorf("jobs: read job: %w", err)
+	}
+	job := Job{ID: row.ID, Kind: row.Kind, Status: Status(row.Status)}
+	if row.Result.Valid {
+		job.Result = json.RawMessage(row.Result.String)
+	}
+	if row.Error.Valid {
+		job.Error = &row.Error.String
+	}
+	return job, nil
+}
+
+// work claims and runs queued jobs until ctx is cancelled, waiting for a
+// wake token whenever none is queued. A claim that fails with a database
+// error is retried with backoff rather than waiting for a token, so a job
+// already queued is not stranded by a transient error.
+func (r *Runner) work(ctx context.Context) {
+	defer r.wg.Done()
+	backoff := claimRetryMin
+	for ctx.Err() == nil {
+		job, err := r.claim(ctx, sql.NullString{String: store.Now().String(), Valid: true})
+		switch {
+		case err == nil:
+			backoff = claimRetryMin
+			r.run(ctx, job)
+			continue
+		case errors.Is(err, sql.ErrNoRows):
+			backoff = claimRetryMin
+			select {
+			case <-r.wake:
+			case <-ctx.Done():
+			}
+			continue
+		case ctx.Err() != nil:
+			return
+		}
+		r.logger.ErrorContext(ctx, "claim job failed; retrying", "reason", "database error", "retry_in", backoff)
+		timer := time.NewTimer(backoff)
+		select {
+		case <-timer.C:
+		case <-ctx.Done():
+			timer.Stop()
+		}
+		backoff = min(2*backoff, claimRetryMax)
+	}
+}
+
+// run runs a claimed job to completion. The final write is made even when
+// ctx has been cancelled, so a handler that finishes during shutdown is
+// recorded.
+func (r *Runner) run(ctx context.Context, job db.Job) {
+	write := context.WithoutCancel(ctx)
+	logger := r.logger.With("job_id", job.ID, "kind", job.Kind)
+	q := db.New(r.st.Writer)
+
+	h, ok := r.handlers[job.Kind] // read-only once started
+	if !ok {
+		logger.ErrorContext(ctx, "job failed", "code", CodeUnknownKind, "reason", "no handler registered for the kind")
+		r.fail(write, logger, job.ID, CodeUnknownKind)
+		return
+	}
+
+	publish := func(partial json.RawMessage) error {
+		n, err := q.PublishJobResult(ctx, db.PublishJobResultParams{
+			Result:    sql.NullString{String: string(partial), Valid: true},
+			UpdatedAt: store.Now().String(),
+			ID:        job.ID,
+		})
+		if err != nil {
+			return fmt.Errorf("jobs: publish result: %w", err)
+		}
+		if n != 1 {
+			return fmt.Errorf("jobs: publish result: job %s is not running", job.ID)
+		}
+		return nil
+	}
+
+	result, code, reason := h(ctx, job.Payload, publish)
+	if code != "" {
+		if ctx.Err() != nil {
+			logger.WarnContext(write, "job interrupted by shutdown; it fails at the next start")
+			return
+		}
+		level := slog.LevelInfo
+		if code == CodeInternal {
+			level = slog.LevelError
+		}
+		logger.Log(ctx, level, "job failed", "code", code, "reason", reason)
+		r.fail(write, logger, job.ID, code)
+		return
+	}
+
+	n, err := q.SucceedJob(write, db.SucceedJobParams{
+		Result: sql.NullString{String: string(result), Valid: true},
+		Now:    sql.NullString{String: store.Now().String(), Valid: true},
+		ID:     job.ID,
+	})
+	if err == nil && n != 1 {
+		err = errors.New("job is not running")
+	}
+	if err != nil {
+		logger.ErrorContext(write, "record job success", "error", err)
+	}
+}
+
+// fail records the job as failed with code. The record errors it logs come
+// from the database, never from a handler.
+func (r *Runner) fail(ctx context.Context, logger *slog.Logger, id, code string) {
+	n, err := db.New(r.st.Writer).FailJob(ctx, db.FailJobParams{
+		Error: sql.NullString{String: code, Valid: true},
+		Now:   sql.NullString{String: store.Now().String(), Valid: true},
+		ID:    id,
+	})
+	if err == nil && n != 1 {
+		err = errors.New("job is not running")
+	}
+	if err != nil {
+		logger.ErrorContext(ctx, "record job failure", "error", err)
+	}
+}

internal/jobs/jobs_test.go

@@ -0,0 +1,570 @@
+package jobs
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"log/slog"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/db"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+// sentinelSecret stands in for a credential a handler holds while it runs.
+const sentinelSecret = "sk-sentinel-5f2c9a"
+
+type countPayload struct {
+	Steps int `json:"steps"`
+}
+
+type countResult struct {
+	Done int `json:"done"`
+}
+
+func (c countResult) PublicJSON() ([]byte, error) { return json.Marshal(c) }
+
+func migratedStore(t *testing.T) *store.Store {
+	t.Helper()
+	ctx := context.Background()
+	st, err := store.Open(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := st.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := store.Migrate(ctx, st.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	return st
+}
+
+func newRunner(t *testing.T, st *store.Store, workers int) *Runner {
+	t.Helper()
+	return newRunnerLogging(t, st, workers, io.Discard)
+}
+
+func newRunnerLogging(t *testing.T, st *store.Store, workers int, w io.Writer) *Runner {
+	t.Helper()
+	r, err := NewRunner(st, slog.New(slog.NewTextHandler(w, nil)), workers)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return r
+}
+
+// logBuffer collects log output written by concurrent workers.
+type logBuffer struct {
+	mu  sync.Mutex
+	buf bytes.Buffer
+}
+
+func (b *logBuffer) Write(p []byte) (int, error) {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	return b.buf.Write(p)
+}
+
+func (b *logBuffer) String() string {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	return b.buf.String()
+}
+
+// start starts r and stops it when the test ends. The returned function
+// stops it early and waits for its workers.
+func start(t *testing.T, r *Runner) (stop func()) {
+	t.Helper()
+	ctx, cancel := context.WithCancel(context.Background())
+	if err := r.Start(ctx); err != nil {
+		cancel()
+		t.Fatal(err)
+	}
+	stop = func() {
+		cancel()
+		r.Wait()
+	}
+	t.Cleanup(stop)
+	return stop
+}
+
+func register[P any, R Public](t *testing.T, r *Runner, kind string, h Handler[P, R], failureCodes ...string) *Kind[P] {
+	t.Helper()
+	k, err := Register(r, kind, h, failureCodes...)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return k
+}
+
+func enqueue[P any](t *testing.T, k *Kind[P], payload P) string {
+	t.Helper()
+	id, err := k.Enqueue(context.Background(), payload)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return id
+}
+
+// waitFor polls Get until done accepts the job, failing after five seconds.
+func waitFor(t *testing.T, r *Runner, id string, done func(Job) bool) Job {
+	t.Helper()
+	deadline := time.Now().Add(5 * time.Second)
+	for {
+		job, err := r.Get(context.Background(), id)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if done(job) {
+			return job
+		}
+		if time.Now().After(deadline) {
+			t.Fatalf("job %s never reached the expected state; last %+v (result %s)", id, job, job.Result)
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+}
+
+func finished(j Job) bool { return j.Status == StatusSucceeded || j.Status == StatusFailed }
+
+// rawRow returns every column of the job's row joined, for leak checks.
+func rawRow(t *testing.T, st *store.Store, id string) string {
+	t.Helper()
+	var cols [10]any
+	ptrs := make([]any, len(cols))
+	for i := range cols {
+		ptrs[i] = &cols[i]
+	}
+	if err := st.Reader.QueryRow("SELECT * FROM jobs WHERE id = ?", id).Scan(ptrs...); err != nil {
+		t.Fatal(err)
+	}
+	return fmt.Sprint(cols[:]...)
+}
+
+func TestJobSucceeds(t *testing.T) {
+	t.Parallel()
+	st := migratedStore(t)
+	r := newRunner(t, st, 2)
+	count := register(t, r, "count", func(_ context.Context, p countPayload, _ func(countResult) error) (countResult, error) {
+		return countResult{Done: p.Steps}, nil
+	})
+	start(t, r)
+
+	id := enqueue(t, count, countPayload{Steps: 3})
+	job := waitFor(t, r, id, finished)
+	if job.ID != id || job.Kind != "count" || job.Status != StatusSucceeded || job.Error != nil {
+		t.Fatalf("job = %+v, want succeeded count job %s with no error", job, id)
+	}
+	if string(job.Result) != `{"done":3}` {
+		t.Errorf("result = %s, want {\"done\":3}", job.Result)
+	}
+
+	var startedAt, finishedAt, createdAt, updatedAt, payload string
+	if err := st.Reader.QueryRow("SELECT started_at, finished_at, created_at, updated_at, payload FROM jobs WHERE id = ?", id).
+		Scan(&startedAt, &finishedAt, &createdAt, &updatedAt, &payload); err != nil {
+		t.Fatal(err)
+	}
+	for name, v := range map[string]string{"started_at": startedAt, "finished_at": finishedAt, "created_at": createdAt, "updated_at": updatedAt} {
+		var ts store.Timestamp
+		if err := ts.Scan(v); err != nil {
+			t.Errorf("%s = %q: %v", name, v, err)
+		}
+	}
+	if payload != `{"steps":3}` {
+		t.Errorf("payload = %s, want {\"steps\":3}", payload)
+	}
+}
+
+func TestJobFailsWithFailureCode(t *testing.T) {
+	t.Parallel()
+	st := migratedStore(t)
+	r := newRunner(t, st, 1)
+	k := register(t, r, "suggest", func(context.Context, countPayload, func(countResult) error) (countResult, error) {
+		return countResult{}, fmt.Errorf("suggest: %w", &Failure{Code: "no_regulars"})
+	}, "no_regulars")
+	start(t, r)
+
+	job := waitFor(t, r, enqueue(t, k, countPayload{}), finished)
+	if job.Status != StatusFailed || job.Error == nil || *job.Error != "no_regulars" {
+		t.Fatalf("job = %+v, want failed with code no_regulars", job)
+	}
+	if job.Result != nil {
+		t.Errorf("result = %s, want none", job.Result)
+	}
+	var stored string
+	if err := st.Reader.QueryRow("SELECT error FROM jobs WHERE id = ?", job.ID).Scan(&stored); err != nil {
+		t.Fatal(err)
+	}
+	if stored != "no_regulars" {
+		t.Errorf("stored error = %q, want only the code", stored)
+	}
+}
+
+func TestUndeclaredFailureCodeIsInternal(t *testing.T) {
+	t.Parallel()
+	r := newRunner(t, migratedStore(t), 1)
+	k := register(t, r, "suggest", func(context.Context, countPayload, func(countResult) error) (countResult, error) {
+		return countResult{}, &Failure{Code: "not_declared"}
+	}, "no_regulars")
+	start(t, r)
+
+	job := waitFor(t, r, enqueue(t, k, countPayload{}), finished)
+	if job.Status != StatusFailed || job.Error == nil || *job.Error != CodeInternal {
+		t.Fatalf("job = %+v, want failed with %q", job, CodeInternal)
+	}
+}
+
+// credential holds a secret the way config.Secret does: unexported, so
+// encoding/json cannot see it.
+type credential struct{ value string }
+
+func (credential) String() string { return "[REDACTED]" }
+
+// leakyResult holds a secret in exported and unexported fields; only
+// Dinners is public.
+type leakyResult struct {
+	Dinners []string
+	Key     credential
+	Token   string
+	apiKey  string
+}
+
+func (l leakyResult) PublicJSON() ([]byte, error) {
+	return json.Marshal(struct {
+		Dinners []string `json:"dinners"`
+	}{l.Dinners})
+}
+
+// badResult has no valid public JSON; its encoding error quotes a secret.
+type badResult struct{}
+
+func (badResult) PublicJSON() ([]byte, error) {
+	return nil, fmt.Errorf("encode with key %s", sentinelSecret)
+}
+
+// TestSecretsNeverStoredOrLogged proves a handler holding a secret cannot
+// surface it in the jobs row, Get's result or the log through its result,
+// partial results, *Failure, error text or result encoding error.
+func TestSecretsNeverStoredOrLogged(t *testing.T) {
+	t.Parallel()
+	st := migratedStore(t)
+	var logs logBuffer
+	r := newRunnerLogging(t, st, 1, &logs)
+	secretResult := leakyResult{Dinners: []string{"Tacos"}, Key: credential{sentinelSecret}, Token: sentinelSecret, apiKey: sentinelSecret}
+	typed := register(t, r, "typed", func(_ context.Context, _ countPayload, publish func(leakyResult) error) (leakyResult, error) {
+		if err := publish(secretResult); err != nil {
+			return leakyResult{}, err
+		}
+		return secretResult, nil
+	})
+	leakyError := register(t, r, "leaky-error", func(context.Context, countPayload, func(leakyResult) error) (leakyResult, error) {
+		return leakyResult{}, fmt.Errorf("GET https://api.example.com/v1?key=%s: 401 %s", sentinelSecret, sentinelSecret)
+	})
+	leakyFailure := register(t, r, "leaky-failure", func(context.Context, countPayload, func(leakyResult) error) (leakyResult, error) {
+		return leakyResult{}, &Failure{Code: sentinelSecret}
+	}, "quota_exceeded")
+	failure := register(t, r, "failure", func(context.Context, countPayload, func(leakyResult) error) (leakyResult, error) {
+		return leakyResult{}, fmt.Errorf("call with key %s: %w", sentinelSecret, &Failure{Code: "quota_exceeded"})
+	}, "quota_exceeded")
+	badEncoding := register(t, r, "bad-encoding", func(context.Context, countPayload, func(badResult) error) (badResult, error) {
+		return badResult{}, nil
+	})
+	stop := start(t, r)
+
+	cases := []struct {
+		kind       *Kind[countPayload]
+		wantStatus Status
+		wantResult string
+		wantError  string
+	}{
+		{typed, StatusSucceeded, `{"dinners":["Tacos"]}`, ""},
+		{leakyError, StatusFailed, "", CodeInternal},
+		{leakyFailure, StatusFailed, "", CodeInternal},
+		{failure, StatusFailed, "", "quota_exceeded"},
+		{badEncoding, StatusFailed, "", CodeInternal},
+	}
+	var ids []string
+	for _, c := range cases {
+		job := waitFor(t, r, enqueue(t, c.kind, countPayload{}), finished)
+		ids = append(ids, job.ID)
+		gotError := ""
+		if job.Error != nil {
+			gotError = *job.Error
+		}
+		if job.Status != c.wantStatus || string(job.Result) != c.wantResult || gotError != c.wantError {
+			t.Errorf("%s job = %+v (result %s), want %s with result %q and error %q", job.Kind, job, job.Result, c.wantStatus, c.wantResult, c.wantError)
+		}
+		body, err := json.Marshal(job)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if strings.Contains(string(body), sentinelSecret) {
+			t.Errorf("%s job as served contains the secret: %s", job.Kind, body)
+		}
+	}
+	stop()
+	for _, id := range ids {
+		if row := rawRow(t, st, id); strings.Contains(row, sentinelSecret) {
+			t.Errorf("job %s row contains the secret: %s", id, row)
+		}
+	}
+	if strings.Contains(logs.String(), sentinelSecret) {
+		t.Errorf("log contains the secret:\n%s", logs.String())
+	}
+	if !strings.Contains(logs.String(), "code="+CodeInternal) {
+		t.Errorf("log does not record the internal_error code:\n%s", logs.String())
+	}
+}
+
+func TestProgressiveResultsVisibleMidRun(t *testing.T) {
+	t.Parallel()
+	r := newRunner(t, migratedStore(t), 1)
+	release := make(chan struct{})
+	k := register(t, r, "draft", func(ctx context.Context, p countPayload, publish func(countResult) error) (countResult, error) {
+		for i := 1; i < p.Steps; i++ {
+			if err := publish(countResult{Done: i}); err != nil {
+				return countResult{}, err
+			}
+			select {
+			case <-release:
+			case <-ctx.Done():
+				return countResult{}, ctx.Err()
+			}
+		}
+		return countResult{Done: p.Steps}, nil
+	})
+	start(t, r)
+
+	id := enqueue(t, k, countPayload{Steps: 3})
+	for step := 1; step < 3; step++ {
+		want := fmt.Sprintf(`{"done":%d}`, step)
+		job := waitFor(t, r, id, func(j Job) bool { return string(j.Result) == want })
+		if job.Status != StatusRunning || job.Error != nil {
+			t.Fatalf("mid-run job = %+v, want running with no error", job)
+		}
+		release <- struct{}{}
+	}
+	job := waitFor(t, r, id, finished)
+	if job.Status != StatusSucceeded || string(job.Result) != `{"done":3}` {
+		t.Fatalf("job = %+v (result %s), want succeeded with {\"done\":3}", job, job.Result)
+	}
+}
+
+func TestRestartFailsInterruptedJobsAndRunsQueuedOnes(t *testing.T) {
+	t.Parallel()
+	st := migratedStore(t)
+
+	first := newRunner(t, st, 1)
+	started := make(chan struct{})
+	k := register(t, first, "slow", func(ctx context.Context, _ countPayload, publish func(countResult) error) (countResult, error) {
+		if err := publish(countResult{Done: 1}); err != nil {
+			return countResult{}, err
+		}
+		close(started)
+		<-ctx.Done()
+		return countResult{}, ctx.Err()
+	})
+	stop := start(t, first)
+	interrupted := enqueue(t, k, countPayload{})
+	<-started
+	waiting := enqueue(t, k, countPayload{}) // the only worker is busy
+	stop()
+
+	if job := waitFor(t, first, interrupted, func(Job) bool { return true }); job.Status != StatusRunning {
+		t.Fatalf("after shutdown job = %+v, want left running", job)
+	}
+
+	second := newRunner(t, st, 1)
+	register(t, second, "slow", func(context.Context, countPayload, func(countResult) error) (countResult, error) {
+		return countResult{Done: 9}, nil
+	})
+	start(t, second)
+
+	job := waitFor(t, second, interrupted, finished)
+	if job.Status != StatusFailed || job.Error == nil || *job.Error != "interrupted by restart" {
+		t.Errorf("interrupted job = %+v, want failed with %q", job, "interrupted by restart")
+	}
+	if string(job.Result) != `{"done":1}` {
+		t.Errorf("interrupted job result = %s, want the last partial result kept", job.Result)
+	}
+	if job := waitFor(t, second, waiting, finished); job.Status != StatusSucceeded {
+		t.Errorf("queued job = %+v, want run by the new runner", job)
+	}
+}
+
+func TestWorkerPoolIsBounded(t *testing.T) {
+	t.Parallel()
+	r := newRunner(t, migratedStore(t), 2)
+	var running, peak atomic.Int32
+	release := make(chan struct{})
+	k := register(t, r, "busy", func(context.Context, countPayload, func(countResult) error) (countResult, error) {
+		n := running.Add(1)
+		for {
+			p := peak.Load()
+			if n <= p || peak.CompareAndSwap(p, n) {
+				break
+			}
+		}
+		<-release
+		running.Add(-1)
+		return countResult{}, nil
+	})
+	start(t, r)
+
+	ids := make([]string, 5)
+	for i := range ids {
+		ids[i] = enqueue(t, k, countPayload{})
+	}
+	deadline := time.Now().Add(5 * time.Second)
+	for running.Load() < 2 {
+		if time.Now().After(deadline) {
+			t.Fatal("two workers never ran at once")
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+	close(release)
+	for _, id := range ids {
+		if job := waitFor(t, r, id, finished); job.Status != StatusSucceeded {
+			t.Errorf("job = %+v, want succeeded", job)
+		}
+	}
+	if got := peak.Load(); got != 2 {
+		t.Errorf("peak concurrent jobs = %d, want 2", got)
+	}
+}
+
+func TestJobWithoutHandlerFails(t *testing.T) {
+	t.Parallel()
+	st := migratedStore(t)
+	old := newRunner(t, st, 1)
+	k := register(t, old, "retired", func(context.Context, countPayload, func(countResult) error) (countResult, error) {
+		return countResult{}, nil
+	})
+	id := enqueue(t, k, countPayload{}) // never started
+
+	r := newRunner(t, st, 1)
+	start(t, r)
+	job := waitFor(t, r, id, finished)
+	if job.Status != StatusFailed || job.Error == nil || *job.Error != CodeUnknownKind {
+		t.Errorf("job = %+v, want failed for a missing handler", job)
+	}
+}
+
+func TestGetUnknownID(t *testing.T) {
+	t.Parallel()
+	r := newRunner(t, migratedStore(t), 1)
+	if _, err := r.Get(context.Background(), store.NewID()); !errors.Is(err, ErrNotFound) {
+		t.Errorf("Get unknown id error = %v, want ErrNotFound", err)
+	}
+}
+
+func TestRegisterRefusesBadRegistrations(t *testing.T) {
+	t.Parallel()
+	r := newRunner(t, migratedStore(t), 1)
+	h := func(context.Context, countPayload, func(countResult) error) (countResult, error) {
+		return countResult{}, nil
+	}
+	register(t, r, "count", h)
+
+	if _, err := Register(r, "count", h); err == nil {
+		t.Error("duplicate kind registered")
+	}
+	if _, err := Register(r, "", h); err == nil {
+		t.Error("empty kind registered")
+	}
+	if _, err := Register[countPayload, countResult](r, "nil", nil); err == nil {
+		t.Error("nil handler registered")
+	}
+	for _, code := range []string{"", "Bad Code", "sk-sentinel", CodeInternal, CodeInterrupted, CodeUnknownKind} {
+		if _, err := Register(r, "code", h, code); err == nil {
+			t.Errorf("failure code %q accepted", code)
+		}
+	}
+	start(t, r)
+	if _, err := Register(r, "late", h); err == nil {
+		t.Error("kind registered after Start")
+	}
+	if err := r.Start(context.Background()); err == nil {
+		t.Error("second Start succeeded")
+	}
+}
+
+func TestNewRunnerRefusesBadConfig(t *testing.T) {
+	t.Parallel()
+	st := migratedStore(t)
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	if _, err := NewRunner(st, logger, 0); err == nil {
+		t.Error("zero workers accepted")
+	}
+	if _, err := NewRunner(nil, logger, 1); err == nil {
+		t.Error("nil store accepted")
+	}
+	if _, err := NewRunner(st, nil, 1); err == nil {
+		t.Error("nil logger accepted")
+	}
+}
+
+func TestNoopSucceeds(t *testing.T) {
+	t.Parallel()
+	r := newRunner(t, migratedStore(t), 1)
+	builtins, err := RegisterBuiltins(r)
+	if err != nil {
+		t.Fatal(err)
+	}
+	start(t, r)
+
+	job := waitFor(t, r, enqueue(t, builtins.Noop, NoopPayload{}), finished)
+	if job.Kind != KindNoop || job.Status != StatusSucceeded || string(job.Result) != `{"ok":true}` || job.Error != nil {
+		t.Errorf("noop job = %+v (result %s), want succeeded with {\"ok\":true}", job, job.Result)
+	}
+}
+
+func TestClaimErrorIsRetried(t *testing.T) {
+	st := migratedStore(t)
+	logs := &logBuffer{}
+	r := newRunnerLogging(t, st, 1, logs)
+	k := register(t, r, "count", func(ctx context.Context, p countPayload, publish func(countResult) error) (countResult, error) {
+		return countResult{Done: p.Steps}, nil
+	})
+	id := enqueue(t, k, countPayload{Steps: 3})
+	// Drop the wake token, as for a job queued before a restart, so only
+	// the retry can find the job.
+	<-r.wake
+
+	var claims atomic.Int32
+	claim := r.claim
+	r.claim = func(ctx context.Context, now sql.NullString) (db.Job, error) {
+		if claims.Add(1) == 1 {
+			return db.Job{}, errors.New("database is locked " + sentinelSecret)
+		}
+		return claim(ctx, now)
+	}
+	start(t, r)
+
+	job := waitFor(t, r, id, finished)
+	if job.Status != StatusSucceeded || string(job.Result) != `{"done":3}` {
+		t.Fatalf("job = %+v (result %s), want succeeded with {\"done\":3}", job, job.Result)
+	}
+	if n := claims.Load(); n < 2 {
+		t.Fatalf("claims = %d, want a retry after the error", n)
+	}
+	out := logs.String()
+	if !strings.Contains(out, "claim job failed; retrying") {
+		t.Fatalf("claim error not logged: %s", out)
+	}
+	if strings.Contains(out, sentinelSecret) {
+		t.Fatalf("claim error text logged: %s", out)
+	}
+}

internal/secretbox/secretbox.go

@@ -0,0 +1,81 @@
+// Package secretbox encrypts secrets at rest with AES-256-GCM. It is the only
+// owner of secret encryption: every _ct column holds a token produced by
+// Box.Encrypt, laid out as nonce ‖ ciphertext.
+//
+// Errors from this package never contain plaintext, ciphertext or key
+// material.
+package secretbox
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"encoding/base64"
+	"errors"
+	"fmt"
+)
+
+// KeySize is the decoded key length in bytes (AES-256).
+const KeySize = 32
+
+var (
+	// ErrKeyEncoding means the key is not valid standard base64.
+	ErrKeyEncoding = errors.New("secretbox: key is not valid standard base64")
+	// ErrKeyLength means the decoded key is not exactly KeySize bytes.
+	ErrKeyLength = errors.New("secretbox: key must decode to exactly 32 bytes")
+	// ErrMalformed means a token is too short to hold a nonce and tag.
+	ErrMalformed = errors.New("secretbox: token is too short")
+	// ErrDecrypt means a token failed authentication: it was corrupted or
+	// sealed under a different key.
+	ErrDecrypt = errors.New("secretbox: token failed authentication")
+)
+
+// Box seals and opens secrets under one key. It is safe for concurrent use.
+type Box struct {
+	aead cipher.AEAD
+}
+
+// New returns a Box for encodedKey, the standard-base64 encoding of a
+// KeySize-byte key.
+func New(encodedKey string) (*Box, error) {
+	key, err := base64.StdEncoding.Strict().DecodeString(encodedKey)
+	if err != nil {
+		// The decoder's error is not wrapped: it describes the key's content.
+		return nil, ErrKeyEncoding
+	}
+	if len(key) != KeySize {
+		return nil, fmt.Errorf("%w, got %d", ErrKeyLength, len(key))
+	}
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, fmt.Errorf("secretbox: %w", err)
+	}
+	aead, err := cipher.NewGCM(block)
+	if err != nil {
+		return nil, fmt.Errorf("secretbox: %w", err)
+	}
+	return &Box{aead: aead}, nil
+}
+
+// Encrypt seals plaintext under a fresh random nonce and returns
+// nonce ‖ ciphertext.
+func (b *Box) Encrypt(plaintext []byte) ([]byte, error) {
+	nonce := make([]byte, b.aead.NonceSize(), b.aead.NonceSize()+len(plaintext)+b.aead.Overhead())
+	if _, err := rand.Read(nonce); err != nil {
+		return nil, fmt.Errorf("secretbox: generate nonce: %w", err)
+	}
+	return b.aead.Seal(nonce, nonce, plaintext, nil), nil
+}
+
+// Decrypt authenticates and opens a token produced by Encrypt.
+func (b *Box) Decrypt(token []byte) ([]byte, error) {
+	n := b.aead.NonceSize()
+	if len(token) < n+b.aead.Overhead() {
+		return nil, ErrMalformed
+	}
+	plaintext, err := b.aead.Open(nil, token[:n], token[n:], nil)
+	if err != nil {
+		return nil, ErrDecrypt
+	}
+	return plaintext, nil
+}

internal/secretbox/secretbox_test.go

@@ -0,0 +1,200 @@
+package secretbox
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/base64"
+	"errors"
+	"strings"
+	"testing"
+)
+
+// newKey returns a fresh random key and its standard-base64 encoding.
+func newKey(t *testing.T) ([]byte, string) {
+	t.Helper()
+	key := make([]byte, KeySize)
+	if _, err := rand.Read(key); err != nil {
+		t.Fatal(err)
+	}
+	return key, base64.StdEncoding.EncodeToString(key)
+}
+
+func newBox(t *testing.T) (*Box, []byte, string) {
+	t.Helper()
+	key, encoded := newKey(t)
+	box, err := New(encoded)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return box, key, encoded
+}
+
+// assertNoLeak fails if err's message contains any of the secrets, either
+// raw or base64-encoded.
+func assertNoLeak(t *testing.T, err error, secrets ...[]byte) {
+	t.Helper()
+	msg := err.Error()
+	for _, s := range secrets {
+		if len(s) == 0 {
+			continue
+		}
+		for _, form := range []string{string(s), base64.StdEncoding.EncodeToString(s), base64.RawStdEncoding.EncodeToString(s)} {
+			if strings.Contains(msg, form) {
+				t.Errorf("error %q leaks secret material %q", msg, form)
+			}
+		}
+	}
+}
+
+func TestRoundTrip(t *testing.T) {
+	box, _, _ := newBox(t)
+	for _, plaintext := range [][]byte{
+		[]byte("ya29.oauth-refresh-token"),
+		{},
+		bytes.Repeat([]byte{0x00, 0xff}, 4096),
+	} {
+		token, err := box.Encrypt(plaintext)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(plaintext) > 0 && bytes.Contains(token, plaintext) {
+			t.Errorf("token contains the plaintext")
+		}
+		got, err := box.Decrypt(token)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if !bytes.Equal(got, plaintext) {
+			t.Errorf("Decrypt = %q, want %q", got, plaintext)
+		}
+	}
+}
+
+func TestTokenLayout(t *testing.T) {
+	box, _, _ := newBox(t)
+	plaintext := []byte("secret")
+	token, err := box.Encrypt(plaintext)
+	if err != nil {
+		t.Fatal(err)
+	}
+	// nonce (12) ‖ ciphertext (len(plaintext)) ‖ GCM tag (16).
+	if want := 12 + len(plaintext) + 16; len(token) != want {
+		t.Errorf("token length = %d, want %d", len(token), want)
+	}
+}
+
+func TestEncryptUsesFreshNonce(t *testing.T) {
+	box, _, _ := newBox(t)
+	plaintext := []byte("same plaintext")
+	a, err := box.Encrypt(plaintext)
+	if err != nil {
+		t.Fatal(err)
+	}
+	b, err := box.Encrypt(plaintext)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if bytes.Equal(a, b) {
+		t.Fatal("two encryptions of the same plaintext are identical")
+	}
+	if bytes.Equal(a[:12], b[:12]) {
+		t.Error("two encryptions reused the same nonce")
+	}
+}
+
+func TestDecryptRejectsFlippedByte(t *testing.T) {
+	box, key, encoded := newBox(t)
+	plaintext := []byte("do-not-leak-me")
+	token, err := box.Encrypt(plaintext)
+	if err != nil {
+		t.Fatal(err)
+	}
+	// Flip one bit in every position: nonce, ciphertext and tag.
+	for i := range token {
+		tampered := bytes.Clone(token)
+		tampered[i] ^= 0x01
+		got, err := box.Decrypt(tampered)
+		if !errors.Is(err, ErrDecrypt) {
+			t.Fatalf("byte %d flipped: Decrypt = %q, %v; want ErrDecrypt", i, got, err)
+		}
+		if got != nil {
+			t.Errorf("byte %d flipped: Decrypt returned plaintext alongside the error", i)
+		}
+		assertNoLeak(t, err, plaintext, key, []byte(encoded), tampered)
+	}
+}
+
+func TestDecryptRejectsWrongKey(t *testing.T) {
+	box, key, encoded := newBox(t)
+	other, otherKey, otherEncoded := newBox(t)
+	plaintext := []byte("do-not-leak-me")
+	token, err := box.Encrypt(plaintext)
+	if err != nil {
+		t.Fatal(err)
+	}
+	got, err := other.Decrypt(token)
+	if !errors.Is(err, ErrDecrypt) {
+		t.Fatalf("Decrypt with wrong key = %q, %v; want ErrDecrypt", got, err)
+	}
+	assertNoLeak(t, err, plaintext, key, []byte(encoded), otherKey, []byte(otherEncoded), token)
+}
+
+func TestDecryptRejectsShortToken(t *testing.T) {
+	box, _, _ := newBox(t)
+	for _, n := range []int{0, 1, 12, 12 + 15} {
+		token := bytes.Repeat([]byte{0xab}, n)
+		if _, err := box.Decrypt(token); !errors.Is(err, ErrMalformed) {
+			t.Errorf("Decrypt(%d bytes) error = %v, want ErrMalformed", n, err)
+		}
+	}
+}
+
+func TestNewRejectsBadKey(t *testing.T) {
+	key, _ := newKey(t)
+	tests := []struct {
+		name    string
+		encoded string
+		want    error
+	}{
+		{"empty", "", ErrKeyLength},
+		{"not base64", "not*base64!" + strings.Repeat("A", 33), ErrKeyEncoding},
+		{"url-safe alphabet", strings.Repeat("_-", 22), ErrKeyEncoding},
+		{"unpadded", base64.RawStdEncoding.EncodeToString(key), ErrKeyEncoding},
+		{"raw key bytes", string(key), ErrKeyEncoding},
+		{"too short", base64.StdEncoding.EncodeToString(key[:31]), ErrKeyLength},
+		{"too long", base64.StdEncoding.EncodeToString(append(bytes.Clone(key), 0x00)), ErrKeyLength},
+		{"AES-128 length", base64.StdEncoding.EncodeToString(key[:16]), ErrKeyLength},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			box, err := New(tt.encoded)
+			if !errors.Is(err, tt.want) {
+				t.Fatalf("New error = %v, want %v", err, tt.want)
+			}
+			if box != nil {
+				t.Error("New returned a Box alongside the error")
+			}
+			assertNoLeak(t, err, key, []byte(tt.encoded))
+		})
+	}
+}
+
+func TestNewAcceptsBase64Key(t *testing.T) {
+	key, encoded := newKey(t)
+	box, err := New(encoded)
+	if err != nil {
+		t.Fatal(err)
+	}
+	// A Box built from the same key opens tokens sealed by the first.
+	token, err := box.Encrypt([]byte("x"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	again, err := New(base64.StdEncoding.EncodeToString(key))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := again.Decrypt(token); err != nil {
+		t.Errorf("same key failed to decrypt: %v", err)
+	}
+}

internal/secureurl/secureurl.go

@@ -0,0 +1,32 @@
+// Package secureurl holds the one transport rule for URLs that carry
+// credentials or session cookies: HTTPS, or plain HTTP to a loopback host for
+// local development and tests.
+package secureurl
+
+import (
+	"errors"
+	"fmt"
+	"net/url"
+	"strings"
+)
+
+// loopbackHosts are the only hosts plain HTTP is allowed for, compared
+// case-insensitively. url.URL's Hostname strips the brackets from "[::1]".
+var loopbackHosts = map[string]bool{"localhost": true, "127.0.0.1": true, "::1": true}
+
+// Check reports an error unless u is an absolute https:// URL, or an http://
+// URL whose host is localhost, 127.0.0.1 or ::1.
+func Check(u *url.URL) error {
+	switch {
+	case u.Hostname() == "":
+		return errors.New("URL has no host")
+	case u.Scheme == "https":
+		return nil
+	case u.Scheme == "http" && loopbackHosts[strings.ToLower(u.Hostname())]:
+		return nil
+	case u.Scheme == "http":
+		return errors.New("plain http:// is allowed only for localhost, 127.0.0.1 or [::1]; use https://")
+	default:
+		return fmt.Errorf("unsupported scheme %q (want https://)", u.Scheme)
+	}
+}

internal/secureurl/secureurl_test.go

@@ -0,0 +1,40 @@
+package secureurl
+
+import (
+	"net/url"
+	"testing"
+)
+
+func TestCheck(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		raw string
+		ok  bool
+	}{
+		{"https://meals.example.com", true},
+		{"https://auth.example.com/application/o/mealquest/", true},
+		{"https://192.0.2.10:8443", true},
+		{"http://localhost:8080", true},
+		{"http://LOCALHOST:8080", true},
+		{"http://127.0.0.1:8080/path", true},
+		{"http://[::1]:8080", true},
+		{"http://[::1]", true},
+		{"http://meals.example.com", false},
+		{"http://192.0.2.10", false},
+		{"http://127.0.0.2", false},
+		{"http://localhost.example.com", false},
+		{"http://0.0.0.0:8080", false},
+		{"ftp://localhost", false},
+		{"https://", false},
+		{"meals.example.com", false},
+	}
+	for _, tc := range tests {
+		u, err := url.Parse(tc.raw)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if err := Check(u); (err == nil) != tc.ok {
+			t.Errorf("Check(%q) error = %v, want ok=%v", tc.raw, err, tc.ok)
+		}
+	}
+}

internal/server/csrf.go

@@ -0,0 +1,42 @@
+package server
+
+import (
+	"crypto/subtle"
+	"log/slog"
+	"net/http"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+)
+
+// CSRFHeader carries the session's CSRF token, which the client reads from
+// GET /api/v1/me.
+const CSRFHeader = "X-MealQuest-CSRF"
+
+// requireCSRF passes GET requests to next; every other
+// request must carry CSRFHeader equal to its session's CSRF token or get 403
+// csrf. It runs behind requireSession, which puts the session in the context.
+func requireCSRF(logger *slog.Logger) func(http.Handler) http.Handler {
+	forbidden := apiErrorHandler(logger, http.StatusForbidden, "csrf", "missing or invalid CSRF token")
+	internal := apiErrorHandler(logger, http.StatusInternalServerError, "internal", "internal error")
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			switch r.Method {
+			case http.MethodGet:
+				next.ServeHTTP(w, r)
+				return
+			}
+			s, ok := auth.SessionFrom(r.Context())
+			if !ok || s.CSRFToken == "" {
+				// An empty token would match a missing header.
+				logger.ErrorContext(r.Context(), "csrf check without a session token", "session", ok)
+				internal(w, r)
+				return
+			}
+			if subtle.ConstantTimeCompare([]byte(r.Header.Get(CSRFHeader)), []byte(s.CSRFToken)) != 1 {
+				forbidden(w, r)
+				return
+			}
+			next.ServeHTTP(w, r)
+		})
+	}
+}

internal/server/csrf_test.go

@@ -0,0 +1,167 @@
+package server
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+)
+
+const (
+	csrfJSON             = `{"error":{"code":"csrf","message":"missing or invalid CSRF token","retryable":false}}`
+	methodNotAllowedJSON = `{"error":{"code":"method_not_allowed","message":"method not allowed","retryable":false}}`
+)
+
+func TestCSRFThroughRouter(t *testing.T) {
+	t.Parallel()
+
+	router := newTestRouter(t, "dev")
+	for _, tc := range []struct {
+		name, method, path string
+		header             []string // nil sends no CSRF header
+		wantStatus         int
+		wantBody           string
+	}{
+		{"POST without header", http.MethodPost, "/api/v1/me", nil, http.StatusForbidden, csrfJSON},
+		{"POST with wrong header", http.MethodPost, "/api/v1/me", []string{"wrong-token"}, http.StatusForbidden, csrfJSON},
+		{"POST with empty header", http.MethodPost, "/api/v1/me", []string{""}, http.StatusForbidden, csrfJSON},
+		{"POST with token prefix", http.MethodPost, "/api/v1/me", []string{"csrf-token"}, http.StatusForbidden, csrfJSON},
+		{"PATCH without header", http.MethodPatch, "/api/v1/settings/household", nil, http.StatusForbidden, csrfJSON},
+		{"DELETE with wrong header", http.MethodDelete, "/api/v1/me", []string{"wrong-token"}, http.StatusForbidden, csrfJSON},
+		// The right token passes the check and reaches the router, which has
+		// no POST /api/v1/me, and the settings handler, which refuses the
+		// empty body.
+		{"POST with right header", http.MethodPost, "/api/v1/me", []string{testSession.CSRFToken}, http.StatusMethodNotAllowed, methodNotAllowedJSON},
+		{"PATCH with right header", http.MethodPatch, "/api/v1/settings/household", []string{testSession.CSRFToken}, http.StatusBadRequest, `{"error":{"code":"invalid_request","message":"request body must be a JSON object","retryable":false}}`},
+		{"GET without header", http.MethodGet, "/api/v1/me", nil, http.StatusOK, ""},
+		// Only GET is exempt; HEAD and OPTIONS need the header too.
+		{"HEAD without header", http.MethodHead, "/api/v1/me", nil, http.StatusForbidden, csrfJSON},
+		{"OPTIONS without header", http.MethodOptions, "/api/v1/me", nil, http.StatusForbidden, csrfJSON},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+			req := httptest.NewRequest(tc.method, tc.path, nil)
+			req.AddCookie(validSessionCookie)
+			if tc.header != nil {
+				req.Header.Set(CSRFHeader, tc.header[0])
+			}
+			rec := httptest.NewRecorder()
+			router.ServeHTTP(rec, req)
+
+			if rec.Code != tc.wantStatus {
+				t.Errorf("status = %d, want %d (body %s)", rec.Code, tc.wantStatus, rec.Body.String())
+			}
+			if tc.wantBody != "" && rec.Body.String() != tc.wantBody {
+				t.Errorf("body = %s, want %s", rec.Body.String(), tc.wantBody)
+			}
+		})
+	}
+}
+
+func TestCSRFUnauthenticatedGets401(t *testing.T) {
+	t.Parallel()
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/me", nil)
+	rec := httptest.NewRecorder()
+	newTestRouter(t, "dev").ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusUnauthorized || rec.Body.String() != unauthenticatedJSON {
+		t.Errorf("response = %d %s, want 401 %s", rec.Code, rec.Body.String(), unauthenticatedJSON)
+	}
+}
+
+func TestRequireCSRF(t *testing.T) {
+	t.Parallel()
+
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	for _, tc := range []struct {
+		name       string
+		method     string
+		session    *auth.Session
+		header     string
+		wantStatus int
+	}{
+		{"right header reaches handler", http.MethodPost, &testSession, testSession.CSRFToken, http.StatusNoContent},
+		{"wrong header", http.MethodPut, &testSession, "nope", http.StatusForbidden},
+		{"GET needs no header", http.MethodGet, &testSession, "", http.StatusNoContent},
+		{"HEAD needs the header", http.MethodHead, &testSession, "", http.StatusForbidden},
+		{"OPTIONS needs the header", http.MethodOptions, &testSession, "", http.StatusForbidden},
+		{"no session in context", http.MethodPost, nil, "", http.StatusInternalServerError},
+		{"session without token", http.MethodPost, &auth.Session{Subject: "user-123"}, "", http.StatusInternalServerError},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+			called := false
+			h := requireCSRF(logger)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+				called = true
+				w.WriteHeader(http.StatusNoContent)
+			}))
+			ctx := context.Background()
+			if tc.session != nil {
+				ctx = auth.WithSession(ctx, *tc.session)
+			}
+			req := httptest.NewRequestWithContext(ctx, tc.method, "/api/v1/anything", nil)
+			if tc.header != "" {
+				req.Header.Set(CSRFHeader, tc.header)
+			}
+			rec := httptest.NewRecorder()
+			h.ServeHTTP(rec, req)
+
+			if rec.Code != tc.wantStatus {
+				t.Errorf("status = %d, want %d", rec.Code, tc.wantStatus)
+			}
+			if called != (tc.wantStatus == http.StatusNoContent) {
+				t.Errorf("handler called = %v with status %d", called, rec.Code)
+			}
+		})
+	}
+}
+
+func TestMe(t *testing.T) {
+	t.Parallel()
+
+	req := httptest.NewRequest(http.MethodGet, "/api/v1/me", nil)
+	req.AddCookie(validSessionCookie)
+	rec := httptest.NewRecorder()
+	newTestRouter(t, "dev").ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want 200 (body %s)", rec.Code, rec.Body.String())
+	}
+	if ct := rec.Header().Get("Content-Type"); ct != "application/json" {
+		t.Errorf("Content-Type = %q, want application/json", ct)
+	}
+	if cc := rec.Header().Get("Cache-Control"); cc != "no-store" {
+		t.Errorf("Cache-Control = %q, want no-store", cc)
+	}
+	var got map[string]any
+	if err := json.Unmarshal(rec.Body.Bytes(), &got); err != nil {
+		t.Fatalf("decode %s: %v", rec.Body.String(), err)
+	}
+	want := map[string]any{
+		"name":      "Home Cook",
+		"email":     "cook@example.com",
+		"household": map[string]any{"label": "Our kitchen"},
+		"csrfToken": "csrf-token-123",
+	}
+	gotJSON, _ := json.Marshal(got)
+	wantJSON, _ := json.Marshal(want)
+	if string(gotJSON) != string(wantJSON) {
+		t.Errorf("body = %s, want %s", gotJSON, wantJSON)
+	}
+}
+
+func TestMeNeedsSession(t *testing.T) {
+	t.Parallel()
+
+	rec := httptest.NewRecorder()
+	newTestRouter(t, "dev").ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/api/v1/me", nil))
+	if rec.Code != http.StatusUnauthorized || rec.Body.String() != unauthenticatedJSON {
+		t.Errorf("response = %d %s, want 401 %s", rec.Code, rec.Body.String(), unauthenticatedJSON)
+	}
+}

internal/server/jobs.go

@@ -0,0 +1,29 @@
+package server
+
+import (
+	"errors"
+	"log/slog"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/jobs"
+)
+
+// getJob serves GET /api/v1/jobs/{id}: the job's id, kind, status, latest
+// result and error.
+func getJob(logger *slog.Logger, runner *jobs.Runner) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		job, err := runner.Get(r.Context(), chi.URLParam(r, "id"))
+		if errors.Is(err, jobs.ErrNotFound) {
+			writeError(w, r, logger, http.StatusNotFound, "not_found", "job not found")
+			return
+		}
+		if err != nil {
+			logger.ErrorContext(r.Context(), "get job", "error", err)
+			writeError(w, r, logger, http.StatusInternalServerError, "internal", "internal error")
+			return
+		}
+		writeJSON(w, r, logger, http.StatusOK, job)
+	}
+}

internal/server/jobs_test.go

@@ -0,0 +1,153 @@
+package server
+
+import (
+	"context"
+	"encoding/json"
+	"maps"
+	"net/http"
+	"net/http/httptest"
+	"slices"
+	"testing"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/jobs"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+)
+
+type draftPayload struct{}
+
+type draftResult struct {
+	Days int `json:"days"`
+}
+
+func (d draftResult) PublicJSON() ([]byte, error) { return json.Marshal(d) }
+
+// startedRunner registers a "draft" kind that publishes {"days":1}, waits
+// for release and returns {"days":7}, or fails with a *jobs.Failure when
+// fail is closed first. It starts the runner and stops it when the test ends.
+func startedRunner(t *testing.T, release, fail <-chan struct{}) (*jobs.Runner, *jobs.Kind[draftPayload]) {
+	t.Helper()
+	runner := newTestRunner(t)
+	kind, err := jobs.Register(runner, "draft", func(ctx context.Context, _ draftPayload, publish func(draftResult) error) (draftResult, error) {
+		if err := publish(draftResult{Days: 1}); err != nil {
+			return draftResult{}, err
+		}
+		select {
+		case <-release:
+			return draftResult{Days: 7}, nil
+		case <-fail:
+			return draftResult{}, &jobs.Failure{Code: "no_regulars"}
+		case <-ctx.Done():
+			return draftResult{}, ctx.Err()
+		}
+	}, "no_regulars")
+	if err != nil {
+		t.Fatal(err)
+	}
+	ctx, cancel := context.WithCancel(context.Background())
+	if err := runner.Start(ctx); err != nil {
+		cancel()
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		cancel()
+		runner.Wait()
+	})
+	return runner, kind
+}
+
+// pollJob GETs the job until want accepts the body, failing after five
+// seconds.
+func pollJob(t *testing.T, h http.Handler, id string, want func(map[string]any) bool) map[string]any {
+	t.Helper()
+	deadline := time.Now().Add(5 * time.Second)
+	for {
+		rec, body := serve(t, h, signedIn(http.MethodGet, "/api/v1/jobs/"+id, nil))
+		if rec.Code != http.StatusOK {
+			t.Fatalf("status = %d, want 200: %s", rec.Code, rec.Body)
+		}
+		if want(body) {
+			if keys := slices.Sorted(maps.Keys(body)); !slices.Equal(keys, []string{"error", "id", "kind", "result", "status"}) {
+				t.Errorf("body fields = %v, want id, kind, status, result, error", keys)
+			}
+			return body
+		}
+		if time.Now().After(deadline) {
+			t.Fatalf("job %s never reached the expected state; last %v", id, body)
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+}
+
+func resultDays(body map[string]any) float64 {
+	result, _ := body["result"].(map[string]any)
+	days, _ := result["days"].(float64)
+	return days
+}
+
+func TestGetJobShowsProgressThenResult(t *testing.T) {
+	t.Parallel()
+	release := make(chan struct{})
+	runner, kind := startedRunner(t, release, nil)
+	router := newTestRouterWith(t, "dev", newTestSettings(t), runner)
+	id, err := kind.Enqueue(context.Background(), draftPayload{})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	mid := pollJob(t, router, id, func(b map[string]any) bool { return resultDays(b) == 1 })
+	if mid["id"] != id || mid["kind"] != "draft" || mid["status"] != "running" || mid["error"] != nil {
+		t.Errorf("mid-run body = %v, want running draft job %s with no error", mid, id)
+	}
+
+	close(release)
+	done := pollJob(t, router, id, func(b map[string]any) bool { return b["status"] == "succeeded" })
+	if resultDays(done) != 7 || done["error"] != nil {
+		t.Errorf("finished body = %v, want result {\"days\":7} and no error", done)
+	}
+}
+
+func TestGetJobShowsFailure(t *testing.T) {
+	t.Parallel()
+	fail := make(chan struct{})
+	close(fail)
+	runner, kind := startedRunner(t, nil, fail)
+	router := newTestRouterWith(t, "dev", newTestSettings(t), runner)
+	id, err := kind.Enqueue(context.Background(), draftPayload{})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	body := pollJob(t, router, id, func(b map[string]any) bool { return b["status"] == "failed" })
+	if body["error"] != "no_regulars" {
+		t.Errorf("error = %v, want the Failure code", body["error"])
+	}
+}
+
+func TestGetJobUnknownIDIsNotFound(t *testing.T) {
+	t.Parallel()
+	router := newTestRouter(t, "dev")
+
+	rec, _ := serve(t, router, signedIn(http.MethodGet, "/api/v1/jobs/"+store.NewID(), nil))
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want 404", rec.Code)
+	}
+	var body errorBody
+	if err := json.Unmarshal(rec.Body.Bytes(), &body); err != nil {
+		t.Fatal(err)
+	}
+	if want := (errorBody{Error: apiError{Code: "not_found", Message: "job not found"}}); body != want {
+		t.Errorf("body = %+v, want %+v", body, want)
+	}
+}
+
+func TestGetJobRequiresSession(t *testing.T) {
+	t.Parallel()
+	router := newTestRouter(t, "dev")
+
+	rec := httptest.NewRecorder()
+	router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/api/v1/jobs/"+store.NewID(), nil))
+	if rec.Code != http.StatusUnauthorized {
+		t.Errorf("status = %d, want 401", rec.Code)
+	}
+}

internal/server/login_test.go

@@ -0,0 +1,140 @@
+package server
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+	"testing/fstest"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/forwarded"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+// newDiscoveryProvider serves the OIDC discovery document auth.New needs;
+// login only redirects to its authorization endpoint.
+func newDiscoveryProvider(t *testing.T) *httptest.Server {
+	t.Helper()
+	var srv *httptest.Server
+	srv = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/.well-known/openid-configuration" {
+			http.NotFound(w, r)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		json.NewEncoder(w).Encode(map[string]any{
+			"issuer":                                srv.URL,
+			"authorization_endpoint":                srv.URL + "/authorize",
+			"token_endpoint":                        srv.URL + "/token",
+			"jwks_uri":                              srv.URL + "/jwks",
+			"userinfo_endpoint":                     srv.URL + "/userinfo",
+			"end_session_endpoint":                  srv.URL + "/end-session/",
+			"response_types_supported":              []string{"code"},
+			"subject_types_supported":               []string{"public"},
+			"id_token_signing_alg_values_supported": []string{"RS256"},
+		})
+	}))
+	t.Cleanup(srv.Close)
+	return srv
+}
+
+// newLoginRouter wires the production router as cmd/server does: the real
+// auth flow and session manager, trusting Traefik only.
+func newLoginRouter(t *testing.T, issuer string) http.Handler {
+	t.Helper()
+	ctx := context.Background()
+	db, err := store.Open(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := store.Migrate(ctx, db.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	sessions, err := auth.NewSessionManager(db, 720*time.Hour, 4320*time.Hour)
+	if err != nil {
+		t.Fatal(err)
+	}
+	logger := slog.New(forwarded.LogHandler(slog.NewTextHandler(io.Discard, nil)))
+	flow, err := auth.New(ctx, auth.Config{
+		Issuer:        issuer,
+		ClientID:      "mealquest",
+		ClientSecret:  "client-s3cret",
+		PublicURL:     &url.URL{Scheme: "https", Host: "meals.example.com"},
+		SecretKey:     []byte("server-secret-key"),
+		AllowedGroups: []string{"mealquest-admin"},
+	}, sessions, logger)
+	if err != nil {
+		t.Fatal(err)
+	}
+	trusted, err := forwarded.ParseTrusted(traefik)
+	if err != nil {
+		t.Fatal(err)
+	}
+	r, err := NewRouter(logger, "dev", trusted, flow, sessions, newTestSettings(t),
+		newTestRunner(t), fstest.MapFS{"index.html": {Data: []byte(fixtureIndex)}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	return r
+}
+
+// TestLoginThroughRouter starts a login through the production router. The
+// redirect URI and the Secure login cookie come from MEALQUEST_PUBLIC_URL
+// whatever the direct peer: forwarded headers from an untrusted peer are
+// ignored but never fail sign-in.
+func TestLoginThroughRouter(t *testing.T) {
+	t.Parallel()
+	provider := newDiscoveryProvider(t)
+	router := newLoginRouter(t, provider.URL)
+	// Traefik reaches the service over plain http on its internal address;
+	// the host headers must not leak into the redirect URI.
+	headers := map[string]string{
+		forwarded.HeaderFor:   "203.0.113.7",
+		forwarded.HeaderProto: "https",
+		"X-Forwarded-Host":    "evil.example.com",
+	}
+	tests := []struct {
+		name string
+		peer string
+	}{
+		{"trusted proxy", traefik + ":41000"},
+		{"untrusted peer", "172.17.0.1:5000"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			rec := httptest.NewRecorder()
+			router.ServeHTTP(rec, originRequest("http://mealquest:8080"+auth.LoginPath, tt.peer, headers))
+			resp := rec.Result()
+			if resp.StatusCode != http.StatusFound {
+				t.Fatalf("login status = %d, want 302", resp.StatusCode)
+			}
+			loc, err := url.Parse(resp.Header.Get("Location"))
+			if err != nil {
+				t.Fatal(err)
+			}
+			if got, want := loc.Scheme+"://"+loc.Host+loc.Path, provider.URL+"/authorize"; got != want {
+				t.Errorf("redirect to %s, want %s", got, want)
+			}
+			if got, want := loc.Query().Get("redirect_uri"), "https://meals.example.com/auth/callback"; got != want {
+				t.Errorf("redirect_uri = %q, want %q from the public URL", got, want)
+			}
+			cookies := resp.Cookies()
+			if len(cookies) != 1 || cookies[0].Name != "__Host-mealquest_login" || !cookies[0].Secure || !cookies[0].HttpOnly {
+				t.Errorf("login cookies = %v, want one Secure, HttpOnly __Host-mealquest_login", cookies)
+			}
+		})
+	}
+}

internal/server/me.go

@@ -0,0 +1,52 @@
+package server
+
+import (
+	"encoding/json"
+	"log/slog"
+	"net/http"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+)
+
+// householdLabel is the single shared household identity.
+const householdLabel = "Our kitchen"
+
+type meResponse struct {
+	Name      string        `json:"name"`
+	Email     string        `json:"email"`
+	Household householdInfo `json:"household"`
+	CSRFToken string        `json:"csrfToken"`
+}
+
+type householdInfo struct {
+	Label string `json:"label"`
+}
+
+// me answers GET /api/v1/me with the signed-in member, the household and the
+// session's CSRF token for CSRFHeader.
+func me(logger *slog.Logger) http.HandlerFunc {
+	internal := apiErrorHandler(logger, http.StatusInternalServerError, "internal", "internal error")
+	return func(w http.ResponseWriter, r *http.Request) {
+		s, ok := auth.SessionFrom(r.Context())
+		if !ok {
+			logger.ErrorContext(r.Context(), "GET /api/v1/me without a session")
+			internal(w, r)
+			return
+		}
+		body, err := json.Marshal(meResponse{
+			Name:      s.Name,
+			Email:     s.Email,
+			Household: householdInfo{Label: householdLabel},
+			CSRFToken: s.CSRFToken,
+		})
+		if err != nil {
+			panic(err) // string fields cannot fail to marshal
+		}
+		w.Header().Set("Content-Type", "application/json")
+		w.Header().Set("Cache-Control", "no-store")
+		w.WriteHeader(http.StatusOK)
+		if _, err := w.Write(body); err != nil {
+			logger.WarnContext(r.Context(), "write me response", "error", err)
+		}
+	}
+}

internal/server/origin.go

@@ -0,0 +1,34 @@
+package server
+
+import (
+	"errors"
+	"log/slog"
+	"net/http"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/forwarded"
+)
+
+// resolveOrigin resolves every request's client address and scheme with
+// forwarded.Resolve and puts them in the context (read them with
+// forwarded.ClientIP and forwarded.Scheme). Forwarded headers are honoured
+// only from a peer in trusted. A malformed forwarded header from a trusted
+// peer gets 400 bad_request.
+func resolveOrigin(logger *slog.Logger, trusted forwarded.Trusted) func(http.Handler) http.Handler {
+	badRequest := apiErrorHandler(logger, http.StatusBadRequest, "bad_request", "invalid forwarded headers")
+	internal := apiErrorHandler(logger, http.StatusInternalServerError, "internal", "internal error")
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			o, err := forwarded.Resolve(r, trusted)
+			switch {
+			case errors.Is(err, forwarded.ErrInvalidHeader):
+				logger.WarnContext(r.Context(), "rejected forwarded headers", "peer", r.RemoteAddr, "error", err)
+				badRequest(w, r)
+			case err != nil:
+				logger.ErrorContext(r.Context(), "resolve request origin", "error", err)
+				internal(w, r)
+			default:
+				next.ServeHTTP(w, r.WithContext(forwarded.NewContext(r.Context(), o)))
+			}
+		})
+	}
+}

internal/server/origin_test.go

@@ -0,0 +1,145 @@
+package server
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"testing/fstest"
+
+	"github.com/go-chi/chi/v5"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/forwarded"
+)
+
+// traefik is the production proxy's address.
+const traefik = "10.60.1.33"
+
+// probeAuth mounts GET /auth/probe, which reports the request's resolved
+// origin, in place of the real auth flow.
+type probeAuth struct{}
+
+func (probeAuth) Mount(r chi.Router) {
+	r.Get("/auth/probe", func(w http.ResponseWriter, r *http.Request) {
+		ip, ipOK := forwarded.ClientIP(r.Context())
+		scheme, schemeOK := forwarded.Scheme(r.Context())
+		if !ipOK || !schemeOK {
+			http.Error(w, "origin not resolved", http.StatusInternalServerError)
+			return
+		}
+		fmt.Fprintf(w, "%s %s", ip, scheme)
+	})
+}
+
+// newOriginRouter builds the production router trusting Traefik, logging
+// through forwarded.LogHandler as cmd/server does.
+func newOriginRouter(t *testing.T, logs io.Writer) http.Handler {
+	t.Helper()
+	trusted, err := forwarded.ParseTrusted(traefik)
+	if err != nil {
+		t.Fatal(err)
+	}
+	logger := slog.New(forwarded.LogHandler(slog.NewJSONHandler(logs, nil)))
+	r, err := NewRouter(logger, "dev", trusted, probeAuth{}, stubSessions{}, newTestSettings(t),
+		newTestRunner(t), fstest.MapFS{"index.html": {Data: []byte(fixtureIndex)}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	return r
+}
+
+func originRequest(target, peer string, headers map[string]string) *http.Request {
+	req := httptest.NewRequest(http.MethodGet, target, nil)
+	req.RemoteAddr = peer
+	for k, v := range headers {
+		req.Header.Set(k, v)
+	}
+	return req
+}
+
+func TestRouterResolvesOrigin(t *testing.T) {
+	t.Parallel()
+	spoofed := map[string]string{forwarded.HeaderFor: "203.0.113.7", forwarded.HeaderProto: "https"}
+	tests := []struct {
+		name string
+		peer string
+		want string
+	}{
+		{"trusted proxy's forwarded headers are honoured", traefik + ":41000", "203.0.113.7 https"},
+		{"untrusted peer spoofing them is ignored", "198.51.100.9:5000", "198.51.100.9 http"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			rec := httptest.NewRecorder()
+			newOriginRouter(t, io.Discard).ServeHTTP(rec, originRequest("/auth/probe", tt.peer, spoofed))
+			if rec.Code != http.StatusOK || rec.Body.String() != tt.want {
+				t.Errorf("probe = %d %q, want 200 %q", rec.Code, rec.Body.String(), tt.want)
+			}
+		})
+	}
+}
+
+func TestRouterLogsResolvedClientIP(t *testing.T) {
+	t.Parallel()
+	spoofed := map[string]string{forwarded.HeaderFor: "203.0.113.7", forwarded.HeaderProto: "https"}
+	tests := []struct {
+		name string
+		peer string
+		want string
+	}{
+		{"trusted proxy", traefik + ":41000", "203.0.113.7"},
+		{"untrusted peer spoofing", "198.51.100.9:5000", "198.51.100.9"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			var logs bytes.Buffer
+			// A failed session lookup is logged with the request's context.
+			req := originRequest("/api/v1/me", tt.peer, spoofed)
+			req.AddCookie(brokenSessionCookie)
+			rec := httptest.NewRecorder()
+			newOriginRouter(t, &logs).ServeHTTP(rec, req)
+			if rec.Code != http.StatusInternalServerError {
+				t.Fatalf("status = %d, want 500", rec.Code)
+			}
+			var line map[string]any
+			if err := json.Unmarshal(logs.Bytes(), &line); err != nil {
+				t.Fatalf("log %q: %v", logs.String(), err)
+			}
+			if line["msg"] != "look up session" || line[forwarded.LogAttr] != tt.want {
+				t.Errorf("log = %v, want the session error with %s=%s", line, forwarded.LogAttr, tt.want)
+			}
+		})
+	}
+}
+
+func TestRouterRejectsMalformedForwardedHeaders(t *testing.T) {
+	t.Parallel()
+	const badRequestJSON = `{"error":{"code":"bad_request","message":"invalid forwarded headers","retryable":false}}`
+	for _, headers := range []map[string]string{
+		{forwarded.HeaderFor: "not-an-ip"},
+		{forwarded.HeaderProto: "ftp"},
+	} {
+		var logs bytes.Buffer
+		rec := httptest.NewRecorder()
+		newOriginRouter(t, &logs).ServeHTTP(rec, originRequest("/health", traefik+":41000", headers))
+		if rec.Code != http.StatusBadRequest || rec.Body.String() != badRequestJSON {
+			t.Errorf("%v: response = %d %s, want 400 %s", headers, rec.Code, rec.Body.String(), badRequestJSON)
+		}
+		if !bytes.Contains(logs.Bytes(), []byte("rejected forwarded headers")) {
+			t.Errorf("%v: logs = %q, want the rejection logged", headers, logs.String())
+		}
+
+		// The same headers from an untrusted peer are not examined at all.
+		rec = httptest.NewRecorder()
+		newOriginRouter(t, io.Discard).ServeHTTP(rec, originRequest("/health", "198.51.100.9:5000", headers))
+		if rec.Code != http.StatusOK {
+			t.Errorf("%v from an untrusted peer: status = %d, want 200", headers, rec.Code)
+		}
+	}
+}

internal/server/server.go

@@ -3,22 +3,43 @@ package server
 
 import (
 	"encoding/json"
+	"errors"
 	"io/fs"
 	"log/slog"
 	"net/http"
 
 	"github.com/go-chi/chi/v5"
 
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/forwarded"
 	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/frontend"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/household"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/jobs"
 )
 
 // reservedPrefixes are owned by the API router and are never answered with the
 // SPA's index.html.
 var reservedPrefixes = []string{"/api", "/auth", "/media", "/health"}
 
-// NewRouter returns the HTTP handler for the service. version is reported by
-// GET /health; assets is the web build served for every other GET.
-func NewRouter(logger *slog.Logger, version string, assets fs.FS) (http.Handler, error) {
+// RouteMounter registers its own routes on the router.
+type RouteMounter interface {
+	Mount(r chi.Router)
+}
+
+// NewRouter returns the HTTP handler for the service. Every request first
+// has its client address and scheme resolved, honouring forwarded headers
+// only from a peer in trusted (see resolveOrigin). version is reported by
+// GET /health; auth mounts the /auth routes; sessions guards /api/v1 and
+// /media; settings serves /api/v1/settings/household; runner serves
+// /api/v1/jobs/{id}; assets is the web build
+// served for every other GET. /health, /auth and the web build are public.
+// Requests to /api/v1 other than GET also need the session's CSRF token in CSRFHeader.
+func NewRouter(logger *slog.Logger, version string, trusted forwarded.Trusted, auth RouteMounter, sessions SessionLookup, settings *household.SettingsService, runner *jobs.Runner, assets fs.FS) (http.Handler, error) {
+	if settings == nil {
+		return nil, errors.New("server: nil household settings service")
+	}
+	if runner == nil {
+		return nil, errors.New("server: nil job runner")
+	}
 	notFound := apiErrorHandler(logger, http.StatusNotFound, "not_found", "not found")
 	methodNotAllowed := apiErrorHandler(logger, http.StatusMethodNotAllowed, "method_not_allowed", "method not allowed")
 
@@ -28,16 +49,34 @@ func NewRouter(logger *slog.Logger, version string, assets fs.FS) (http.Handler,
 	}
 
 	r := chi.NewRouter()
+	r.Use(resolveOrigin(logger, trusted))
 	r.MethodNotAllowed(methodNotAllowed)
 	r.NotFound(notFound)
 
 	r.Get("/health", health(logger, version))
+	auth.Mount(r)
+	// The session middleware wraps the whole /api/v1 and /media subrouters
+	// rather than being added with Use: chi skips a subrouter's middleware
+	// when it has no routes, which would leave it unguarded.
+	signedIn := requireSession(logger, sessions)
+	csrf := requireCSRF(logger)
+	apiV1, media := chi.NewRouter(), chi.NewRouter()
+	for _, sub := range []*chi.Mux{apiV1, media} {
+		sub.MethodNotAllowed(methodNotAllowed)
+		sub.NotFound(notFound)
+	}
+	apiV1.Get("/me", me(logger))
+	apiV1.Get("/settings/household", getHouseholdSettings(logger, settings))
+	apiV1.Patch("/settings/household", patchHouseholdSettings(logger, settings))
+	apiV1.Get("/jobs/{id}", getJob(logger, runner))
 	r.Route("/api", func(r chi.Router) {
 		r.MethodNotAllowed(methodNotAllowed)
 		r.NotFound(notFound)
+		r.Mount("/v1", signedIn(csrf(apiV1)))
 	})
-	// Catch-all for the PWA. /auth and /media have no routes yet; the frontend
-	// handler passes them to notFound rather than the SPA fallback.
+	r.Mount("/media", signedIn(media))
+	// Catch-all for the PWA. Unknown /auth paths reach the frontend handler,
+	// which passes them to notFound rather than the SPA fallback.
 	r.Method(http.MethodGet, "/*", web)
 	r.Method(http.MethodHead, "/*", web)
 	return r, nil
@@ -55,19 +94,8 @@ type apiError struct {
 
 // apiErrorHandler responds with status and a fixed, non-retryable API error.
 func apiErrorHandler(logger *slog.Logger, status int, code, message string) http.HandlerFunc {
-	body, err := json.Marshal(errorBody{Error: apiError{
-		Code:    code,
-		Message: message,
-	}})
-	if err != nil {
-		panic(err) // fixed string and bool fields cannot fail to marshal
-	}
 	return func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Content-Type", "application/json")
-		w.WriteHeader(status)
-		if _, err := w.Write(body); err != nil {
-			logger.WarnContext(r.Context(), "write error response", "code", code, "error", err)
-		}
+		writeError(w, r, logger, status, code, message)
 	}
 }
 

internal/server/server_test.go

@@ -1,6 +1,7 @@
 package server
 
 import (
+	"context"
 	"encoding/json"
 	"io"
 	"log/slog"
@@ -10,6 +11,13 @@ import (
 	"strings"
 	"testing"
 	"testing/fstest"
+
+	"github.com/go-chi/chi/v5"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/household"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/jobs"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
 )
 
 const (
@@ -19,19 +27,109 @@ const (
 )
 
 func newTestRouter(t *testing.T, version string) http.Handler {
+	t.Helper()
+	return newTestRouterWith(t, version, newTestSettings(t), newTestRunner(t))
+}
+
+func newTestRouterWith(t *testing.T, version string, settings *household.SettingsService, runner *jobs.Runner) http.Handler {
 	t.Helper()
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
 	assets := fstest.MapFS{
 		"index.html":             {Data: []byte(fixtureIndex)},
 		"assets/index-AbC123.js": {Data: []byte(fixtureAsset)},
 	}
-	r, err := NewRouter(logger, version, assets)
+	r, err := NewRouter(logger, version, nil, stubAuth{}, stubSessions{}, settings, runner, assets)
 	if err != nil {
 		t.Fatal(err)
 	}
 	return r
 }
 
+// stubAuth mounts a fixed GET /auth/login in place of the real auth flow.
+type stubAuth struct{}
+
+func (stubAuth) Mount(r chi.Router) {
+	r.Get("/auth/login", func(w http.ResponseWriter, _ *http.Request) {
+		io.WriteString(w, "stub login")
+	})
+}
+
+func TestAuthRoutesMounted(t *testing.T) {
+	t.Parallel()
+
+	router := newTestRouter(t, "dev")
+	rec := httptest.NewRecorder()
+	router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/auth/login", nil))
+	if rec.Code != http.StatusOK || rec.Body.String() != "stub login" {
+		t.Errorf("GET /auth/login = %d %q, want the mounted handler", rec.Code, rec.Body.String())
+	}
+
+	rec = httptest.NewRecorder()
+	router.ServeHTTP(rec, httptest.NewRequest(http.MethodPost, "/auth/login", nil))
+	if rec.Code != http.StatusMethodNotAllowed {
+		t.Errorf("POST /auth/login status = %d, want 405", rec.Code)
+	}
+}
+
+// newTestStore returns a migrated temp database, closed when the test ends.
+func newTestStore(t *testing.T) *store.Store {
+	t.Helper()
+	ctx := context.Background()
+	st, err := store.Open(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := st.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := store.Migrate(ctx, st.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	return st
+}
+
+// newTestSettings returns a settings service over a migrated temp database
+// seeded with zone America/New_York.
+func newTestSettings(t *testing.T) *household.SettingsService {
+	t.Helper()
+	st := newTestStore(t)
+	if err := household.SeedSettings(context.Background(), st, "America/New_York"); err != nil {
+		t.Fatal(err)
+	}
+	return household.NewSettingsService(st)
+}
+
+// newTestRunner returns an unstarted job runner over a migrated temp
+// database.
+func newTestRunner(t *testing.T) *jobs.Runner {
+	t.Helper()
+	runner, err := jobs.NewRunner(newTestStore(t), slog.New(slog.NewTextHandler(io.Discard, nil)), 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return runner
+}
+
+func TestNewRouterRequiresSettings(t *testing.T) {
+	t.Parallel()
+
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	if _, err := NewRouter(logger, "dev", nil, stubAuth{}, stubSessions{}, nil, newTestRunner(t), fstest.MapFS{"index.html": {}}); err == nil {
+		t.Fatal("NewRouter accepted a nil settings service")
+	}
+}
+
+func TestNewRouterRequiresJobRunner(t *testing.T) {
+	t.Parallel()
+
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	if _, err := NewRouter(logger, "dev", nil, stubAuth{}, stubSessions{}, newTestSettings(t), nil, fstest.MapFS{"index.html": {}}); err == nil {
+		t.Fatal("NewRouter accepted a nil job runner")
+	}
+}
+
 func TestHealth(t *testing.T) {
 	t.Parallel()
 
@@ -98,8 +196,10 @@ func TestReservedPathsNotFound(t *testing.T) {
 	}{
 		{http.MethodGet, "/api"},
 		{http.MethodGet, "/api/unknown"},
+		{http.MethodGet, "/api/v1/unknown"},
+		{http.MethodPost, "/api/v1/unknown"},
 		{http.MethodPost, "/api/unknown"},
-		{http.MethodGet, "/auth/callback"},
+		{http.MethodGet, "/auth/unknown"},
 		{http.MethodGet, "/media/photo.jpg"},
 		{http.MethodGet, "/health/deep"},
 		{http.MethodGet, "/auth/../quests/42"},
@@ -109,8 +209,13 @@ func TestReservedPathsNotFound(t *testing.T) {
 		t.Run(tt.method+" "+tt.path, func(t *testing.T) {
 			t.Parallel()
 
+			// Signed in with the CSRF token, so /api/v1 and /media reach
+			// their routers.
+			req := httptest.NewRequest(tt.method, tt.path, nil)
+			req.AddCookie(validSessionCookie)
+			req.Header.Set(CSRFHeader, testSession.CSRFToken)
 			rec := httptest.NewRecorder()
-			router.ServeHTTP(rec, httptest.NewRequest(tt.method, tt.path, nil))
+			router.ServeHTTP(rec, req)
 
 			if rec.Code != http.StatusNotFound {
 				t.Errorf("status = %d, want 404", rec.Code)

internal/server/session.go

@@ -0,0 +1,37 @@
+package server
+
+import (
+	"errors"
+	"log/slog"
+	"net/http"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+)
+
+// SessionLookup finds the live session a request carries; it returns
+// auth.ErrNoSession when there is none. *auth.SessionManager implements it.
+type SessionLookup interface {
+	SessionFor(r *http.Request) (auth.Session, error)
+}
+
+// requireSession is the RequireSession middleware. It passes requests with a
+// live session to next with the session in the context (read it with
+// auth.SessionFrom or auth.ActorFrom); others get 401 unauthenticated.
+func requireSession(logger *slog.Logger, sessions SessionLookup) func(http.Handler) http.Handler {
+	unauthenticated := apiErrorHandler(logger, http.StatusUnauthorized, "unauthenticated", "sign in required")
+	internal := apiErrorHandler(logger, http.StatusInternalServerError, "internal", "internal error")
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			s, err := sessions.SessionFor(r)
+			switch {
+			case errors.Is(err, auth.ErrNoSession):
+				unauthenticated(w, r)
+			case err != nil:
+				logger.ErrorContext(r.Context(), "look up session", "error", err)
+				internal(w, r)
+			default:
+				next.ServeHTTP(w, r.WithContext(auth.WithSession(r.Context(), s)))
+			}
+		})
+	}
+}

internal/server/session_test.go

@@ -0,0 +1,152 @@
+package server
+
+import (
+	"errors"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"slices"
+	"testing"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+)
+
+const (
+	unauthenticatedJSON = `{"error":{"code":"unauthenticated","message":"sign in required","retryable":false}}`
+	internalJSON        = `{"error":{"code":"internal","message":"internal error","retryable":false}}`
+)
+
+var (
+	validSessionCookie  = &http.Cookie{Name: auth.SessionCookieName, Value: "valid"}
+	brokenSessionCookie = &http.Cookie{Name: auth.SessionCookieName, Value: "broken"}
+	testSession         = auth.Session{
+		Subject:   "user-123",
+		Email:     "cook@example.com",
+		Name:      "Home Cook",
+		Groups:    []string{"mealquest-admin"},
+		CSRFToken: "csrf-token-123",
+	}
+)
+
+// stubSessions knows one valid session cookie; the broken cookie fails the
+// lookup as a database error would.
+type stubSessions struct{}
+
+func (stubSessions) SessionFor(r *http.Request) (auth.Session, error) {
+	c, err := r.Cookie(auth.SessionCookieName)
+	switch {
+	case err != nil:
+		return auth.Session{}, auth.ErrNoSession
+	case c.Value == validSessionCookie.Value:
+		return testSession, nil
+	case c.Value == brokenSessionCookie.Value:
+		return auth.Session{}, errors.New("database down")
+	default:
+		return auth.Session{}, auth.ErrNoSession
+	}
+}
+
+func TestProtectedPathsRequireSession(t *testing.T) {
+	t.Parallel()
+
+	router := newTestRouter(t, "dev")
+	for _, tc := range []struct {
+		method, path string
+		cookie       *http.Cookie
+	}{
+		{http.MethodGet, "/api/v1/settings/household", nil},
+		{http.MethodPatch, "/api/v1/settings/household", nil},
+		{http.MethodGet, "/api/v1", nil},
+		{http.MethodGet, "/media/photo.jpg", nil},
+		{http.MethodGet, "/api/v1/settings/household", &http.Cookie{Name: auth.SessionCookieName, Value: "unknown"}},
+	} {
+		t.Run(tc.method+" "+tc.path, func(t *testing.T) {
+			t.Parallel()
+			req := httptest.NewRequest(tc.method, tc.path, nil)
+			if tc.cookie != nil {
+				req.AddCookie(tc.cookie)
+			}
+			rec := httptest.NewRecorder()
+			router.ServeHTTP(rec, req)
+
+			if rec.Code != http.StatusUnauthorized {
+				t.Errorf("status = %d, want 401", rec.Code)
+			}
+			if ct := rec.Header().Get("Content-Type"); ct != "application/json" {
+				t.Errorf("Content-Type = %q, want application/json", ct)
+			}
+			if got := rec.Body.String(); got != unauthenticatedJSON {
+				t.Errorf("body = %s, want %s", got, unauthenticatedJSON)
+			}
+		})
+	}
+}
+
+func TestPublicPathsNeedNoSession(t *testing.T) {
+	t.Parallel()
+
+	router := newTestRouter(t, "dev")
+	for _, path := range []string{"/health", "/auth/login", "/", "/assets/index-AbC123.js", "/quests/42"} {
+		t.Run(path, func(t *testing.T) {
+			t.Parallel()
+			rec := httptest.NewRecorder()
+			router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, path, nil))
+			if rec.Code != http.StatusOK {
+				t.Errorf("GET %s without a cookie = %d, want 200", path, rec.Code)
+			}
+		})
+	}
+}
+
+func TestSessionLookupFailure(t *testing.T) {
+	t.Parallel()
+
+	req := httptest.NewRequest(http.MethodGet, "/api/v1/settings/household", nil)
+	req.AddCookie(brokenSessionCookie)
+	rec := httptest.NewRecorder()
+	newTestRouter(t, "dev").ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusInternalServerError || rec.Body.String() != internalJSON {
+		t.Errorf("response = %d %s, want 500 %s", rec.Code, rec.Body.String(), internalJSON)
+	}
+}
+
+func TestRequireSessionAttachesActor(t *testing.T) {
+	t.Parallel()
+
+	var got auth.Actor
+	var ok bool
+	next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		got, ok = auth.ActorFrom(r.Context())
+		w.WriteHeader(http.StatusNoContent)
+	})
+	h := requireSession(slog.New(slog.NewTextHandler(io.Discard, nil)), stubSessions{})(next)
+
+	req := httptest.NewRequest(http.MethodGet, "/api/v1/settings/household", nil)
+	req.AddCookie(validSessionCookie)
+	rec := httptest.NewRecorder()
+	h.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNoContent {
+		t.Fatalf("status = %d, want the handler's 204", rec.Code)
+	}
+	if !ok || got.Subject != "user-123" || got.Email != "cook@example.com" || got.Name != "Home Cook" ||
+		!slices.Equal(got.Groups, []string{"mealquest-admin"}) {
+		t.Errorf("actor = %+v (ok=%v), want the session's household member", got, ok)
+	}
+}
+
+func TestRequireSessionStopsUnauthenticated(t *testing.T) {
+	t.Parallel()
+
+	called := false
+	next := http.HandlerFunc(func(http.ResponseWriter, *http.Request) { called = true })
+	h := requireSession(slog.New(slog.NewTextHandler(io.Discard, nil)), stubSessions{})(next)
+	rec := httptest.NewRecorder()
+	h.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/api/v1/settings/household", nil))
+
+	if called || rec.Code != http.StatusUnauthorized {
+		t.Errorf("handler called = %v, status = %d; want not called and 401", called, rec.Code)
+	}
+}

internal/server/settings.go

@@ -0,0 +1,135 @@
+package server
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/household"
+)
+
+// maxSettingsBody bounds a PATCH /settings/household request body.
+const maxSettingsBody = 16 << 10
+
+// settingsPatch is the PATCH /settings/household body. Every field is
+// optional; unknown fields and null values are refused.
+type settingsPatch struct {
+	Timezone         *string `json:"timezone"`
+	DinnerTime       *string `json:"dinner_time"`
+	ReminderTime     *string `json:"reminder_time"`
+	ReviewTime       *string `json:"review_time"`
+	PlanDraftDow     *int    `json:"plan_draft_dow"`
+	PlanDraftTime    *string `json:"plan_draft_time"`
+	SuggestionsDow   *int    `json:"suggestions_dow"`
+	SuggestionsTime  *string `json:"suggestions_time"`
+	ChatAutosendDow  *int    `json:"chat_autosend_dow"`
+	ChatAutosendTime *string `json:"chat_autosend_time"`
+}
+
+func getHouseholdSettings(logger *slog.Logger, svc *household.SettingsService) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		settings, err := svc.Get(r.Context())
+		if err != nil {
+			logger.ErrorContext(r.Context(), "get household settings", "error", err)
+			writeError(w, r, logger, http.StatusInternalServerError, "internal", "internal error")
+			return
+		}
+		writeJSON(w, r, logger, http.StatusOK, settings)
+	}
+}
+
+// patchHouseholdSettings records the session's actor subject as updated_by.
+func patchHouseholdSettings(logger *slog.Logger, svc *household.SettingsService) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		actor, ok := auth.ActorFrom(r.Context())
+		if !ok {
+			logger.ErrorContext(r.Context(), "PATCH /api/v1/settings/household without a session")
+			writeError(w, r, logger, http.StatusInternalServerError, "internal", "internal error")
+			return
+		}
+		patch, err := decodeSettingsPatch(http.MaxBytesReader(w, r.Body, maxSettingsBody))
+		if err != nil {
+			writeError(w, r, logger, http.StatusBadRequest, "invalid_request", err.Error())
+			return
+		}
+		settings, err := svc.Update(r.Context(), household.SettingsPatch(patch), actor.Subject)
+		var invalid *household.ValidationError
+		if errors.As(err, &invalid) {
+			writeError(w, r, logger, http.StatusBadRequest, "invalid_settings", invalid.Error())
+			return
+		}
+		if err != nil {
+			logger.ErrorContext(r.Context(), "update household settings", "error", err)
+			writeError(w, r, logger, http.StatusInternalServerError, "internal", "internal error")
+			return
+		}
+		writeJSON(w, r, logger, http.StatusOK, settings)
+	}
+}
+
+// decodeSettingsPatch reads a single JSON object, refusing unknown fields,
+// null values and trailing data.
+func decodeSettingsPatch(body io.Reader) (settingsPatch, error) {
+	data, err := io.ReadAll(body)
+	if err != nil {
+		var tooLarge *http.MaxBytesError
+		if errors.As(err, &tooLarge) {
+			return settingsPatch{}, fmt.Errorf("request body exceeds %d bytes", tooLarge.Limit)
+		}
+		return settingsPatch{}, errors.New("cannot read request body")
+	}
+
+	var fields map[string]json.RawMessage
+	if err := json.Unmarshal(data, &fields); err != nil || fields == nil {
+		return settingsPatch{}, errors.New("request body must be a JSON object")
+	}
+	for name, raw := range fields {
+		if bytes.Equal(raw, []byte("null")) {
+			return settingsPatch{}, fmt.Errorf("%s: must not be null", name)
+		}
+	}
+
+	var patch settingsPatch
+	dec := json.NewDecoder(bytes.NewReader(data))
+	dec.DisallowUnknownFields()
+	if err := dec.Decode(&patch); err != nil {
+		var typeErr *json.UnmarshalTypeError
+		if errors.As(err, &typeErr) {
+			return settingsPatch{}, fmt.Errorf("%s: want a JSON %s", typeErr.Field, typeErr.Type)
+		}
+		return settingsPatch{}, fmt.Errorf("invalid settings: %v", err)
+	}
+	return patch, nil
+}
+
+func writeJSON(w http.ResponseWriter, r *http.Request, logger *slog.Logger, status int, v any) {
+	body, err := json.Marshal(v)
+	if err != nil {
+		logger.ErrorContext(r.Context(), "encode response", "error", err)
+		writeError(w, r, logger, http.StatusInternalServerError, "internal", "internal error")
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	if _, err := w.Write(body); err != nil {
+		logger.WarnContext(r.Context(), "write response", "error", err)
+	}
+}
+
+// writeError responds with status and a non-retryable API error.
+func writeError(w http.ResponseWriter, r *http.Request, logger *slog.Logger, status int, code, message string) {
+	body, err := json.Marshal(errorBody{Error: apiError{Code: code, Message: message}})
+	if err != nil {
+		panic(err) // string and bool fields cannot fail to marshal
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	if _, err := w.Write(body); err != nil {
+		logger.WarnContext(r.Context(), "write error response", "code", code, "error", err)
+	}
+}

internal/server/settings_test.go

@@ -0,0 +1,278 @@
+package server
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"testing/fstest"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/auth"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/household"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/store"
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+const settingsPath = "/api/v1/settings/household"
+
+// signedIn returns a request carrying stubSessions' valid session cookie and
+// its CSRF token.
+func signedIn(method, target string, body io.Reader) *http.Request {
+	req := httptest.NewRequest(method, target, body)
+	req.AddCookie(validSessionCookie)
+	req.Header.Set(CSRFHeader, testSession.CSRFToken)
+	return req
+}
+
+func serve(t *testing.T, h http.Handler, req *http.Request) (*httptest.ResponseRecorder, map[string]any) {
+	t.Helper()
+	rec := httptest.NewRecorder()
+	h.ServeHTTP(rec, req)
+	if ct := rec.Header().Get("Content-Type"); ct != "application/json" {
+		t.Errorf("Content-Type = %q, want application/json", ct)
+	}
+	var body map[string]any
+	if err := json.Unmarshal(rec.Body.Bytes(), &body); err != nil {
+		t.Fatalf("decode body %q: %v", rec.Body.String(), err)
+	}
+	return rec, body
+}
+
+func TestGetHouseholdSettings(t *testing.T) {
+	t.Parallel()
+
+	rec, body := serve(t, newTestRouter(t, "dev"), signedIn(http.MethodGet, settingsPath, nil))
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want 200: %s", rec.Code, rec.Body)
+	}
+	want := map[string]any{
+		"timezone":                "America/New_York",
+		"dinner_time":             "17:30",
+		"reminder_time":           "16:30",
+		"review_time":             "09:00",
+		"plan_draft_dow":          float64(5),
+		"plan_draft_time":         "09:00",
+		"suggestions_dow":         float64(0),
+		"suggestions_time":        "08:00",
+		"chat_autosend_dow":       float64(6),
+		"chat_autosend_time":      "08:00",
+		"onboarding_completed_at": nil,
+		"updates_seen_at":         nil,
+		"updated_by":              nil,
+	}
+	for k, v := range want {
+		got, ok := body[k]
+		if !ok || got != v {
+			t.Errorf("%s = %#v (present %v), want %#v", k, got, ok, v)
+		}
+	}
+	for _, k := range []string{"created_at", "updated_at"} {
+		if s, ok := body[k].(string); !ok || s == "" {
+			t.Errorf("%s = %#v, want a timestamp", k, body[k])
+		}
+	}
+	if len(body) != len(want)+2 {
+		t.Errorf("body has %d fields, want %d: %v", len(body), len(want)+2, body)
+	}
+}
+
+func TestPatchHouseholdSettings(t *testing.T) {
+	t.Parallel()
+	settings := newTestSettings(t)
+	router := newTestRouterWith(t, "dev", settings, newTestRunner(t))
+
+	var notified []household.Settings
+	settings.Subscribe(func(s household.Settings) { notified = append(notified, s) })
+
+	rec, body := serve(t, router, signedIn(http.MethodPatch, settingsPath,
+		strings.NewReader(`{"timezone":"Europe/Berlin","dinner_time":"18:00","plan_draft_dow":4}`)))
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want 200: %s", rec.Code, rec.Body)
+	}
+	for k, v := range map[string]any{
+		"timezone":       "Europe/Berlin",
+		"dinner_time":    "18:00",
+		"plan_draft_dow": float64(4),
+		"reminder_time":  "16:30", // unchanged
+		"updated_by":     testSession.Subject,
+	} {
+		if body[k] != v {
+			t.Errorf("%s = %#v, want %#v", k, body[k], v)
+		}
+	}
+	if len(notified) != 1 || notified[0].Timezone != "Europe/Berlin" {
+		t.Errorf("subscriber notified with %+v, want one change to Europe/Berlin", notified)
+	}
+
+	_, body = serve(t, router, signedIn(http.MethodGet, settingsPath, nil))
+	if body["timezone"] != "Europe/Berlin" || body["updated_by"] != testSession.Subject {
+		t.Errorf("GET after PATCH = %v", body)
+	}
+}
+
+func TestPatchHouseholdSettingsRejected(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name string
+		body string
+		code string
+		in   string // the error message must contain this
+	}{
+		{"bad timezone", `{"timezone":"Mars/Olympus_Mons"}`, "invalid_settings", "timezone"},
+		{"bad time", `{"dinner_time":"25:00"}`, "invalid_settings", "dinner_time"},
+		{"unpadded time", `{"reminder_time":"9:30"}`, "invalid_settings", "reminder_time"},
+		{"bad dow", `{"suggestions_dow":7}`, "invalid_settings", "suggestions_dow"},
+		{"negative dow", `{"chat_autosend_dow":-1}`, "invalid_settings", "chat_autosend_dow"},
+		{"empty object", `{}`, "invalid_settings", "no settings to change"},
+		{"fractional dow", `{"plan_draft_dow":5.5}`, "invalid_request", "plan_draft_dow"},
+		{"string dow", `{"plan_draft_dow":"5"}`, "invalid_request", "plan_draft_dow"},
+		{"numeric time", `{"dinner_time":1730}`, "invalid_request", "dinner_time"},
+		{"null value", `{"timezone":null}`, "invalid_request", "timezone"},
+		{"unknown field", `{"dinner":"17:30"}`, "invalid_request", "dinner"},
+		{"read-only field", `{"updated_by":"someone"}`, "invalid_request", "updated_by"},
+		{"not an object", `["timezone"]`, "invalid_request", "JSON object"},
+		{"null body", `null`, "invalid_request", "JSON object"},
+		{"trailing data", `{"dinner_time":"18:00"} {}`, "invalid_request", "JSON object"},
+		{"malformed", `{"dinner_time":`, "invalid_request", "JSON object"},
+		{"too large", `{"timezone":"` + strings.Repeat("a", maxSettingsBody) + `"}`, "invalid_request", "exceeds"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			settings := newTestSettings(t)
+			router := newTestRouterWith(t, "dev", settings, newTestRunner(t))
+			notified := 0
+			settings.Subscribe(func(household.Settings) { notified++ })
+
+			rec, body := serve(t, router, signedIn(http.MethodPatch, settingsPath, strings.NewReader(tt.body)))
+			if rec.Code != http.StatusBadRequest {
+				t.Fatalf("status = %d, want 400: %s", rec.Code, rec.Body)
+			}
+			apiErr, ok := body["error"].(map[string]any)
+			if !ok || len(body) != 1 || len(apiErr) != 3 {
+				t.Fatalf("body = %s, want {\"error\":{code,message,retryable}}", rec.Body)
+			}
+			if apiErr["code"] != tt.code || apiErr["retryable"] != false {
+				t.Errorf("error = %v, want code %q, retryable false", apiErr, tt.code)
+			}
+			if msg, _ := apiErr["message"].(string); !strings.Contains(msg, tt.in) {
+				t.Errorf("message %q does not contain %q", msg, tt.in)
+			}
+			if notified != 0 {
+				t.Errorf("rejected PATCH notified subscribers %d times", notified)
+			}
+			_, after := serve(t, router, signedIn(http.MethodGet, settingsPath, nil))
+			if after["timezone"] != "America/New_York" || after["dinner_time"] != "17:30" || after["updated_by"] != nil {
+				t.Errorf("rejected PATCH changed settings: %v", after)
+			}
+		})
+	}
+}
+
+func TestHouseholdSettingsMethodNotAllowed(t *testing.T) {
+	t.Parallel()
+
+	rec, body := serve(t, newTestRouter(t, "dev"), signedIn(http.MethodPut, settingsPath, strings.NewReader(`{}`)))
+	if rec.Code != http.StatusMethodNotAllowed {
+		t.Errorf("status = %d, want 405", rec.Code)
+	}
+	if apiErr, _ := body["error"].(map[string]any); apiErr["code"] != "method_not_allowed" {
+		t.Errorf("body = %v", body)
+	}
+}
+
+// TestHouseholdSettingsWithRealSession drives the settings API through the
+// production router and session manager: a member signs in, reads the CSRF
+// token from GET /api/v1/me and PATCHes; updated_by comes from the session.
+// Without a session, or without the CSRF token, the PATCH is refused and
+// nothing changes.
+func TestHouseholdSettingsWithRealSession(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	st, err := store.Open(ctx, t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := st.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := store.Migrate(ctx, st.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	if err := household.SeedSettings(ctx, st, "America/New_York"); err != nil {
+		t.Fatal(err)
+	}
+	sessions, err := auth.NewSessionManager(st, time.Hour, 24*time.Hour)
+	if err != nil {
+		t.Fatal(err)
+	}
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	router, err := NewRouter(logger, "dev", nil, stubAuth{}, sessions, household.NewSettingsService(st),
+		newTestRunner(t), fstest.MapFS{"index.html": {Data: []byte(fixtureIndex)}})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Sign in as the callback would.
+	login := httptest.NewRecorder()
+	if err := sessions.StartSession(login, httptest.NewRequest(http.MethodGet, "/auth/callback", nil), auth.Claims{
+		Subject: "authentik-sub-42",
+		Email:   "cook@example.com",
+		Name:    "Home Cook",
+		Groups:  []string{"mealquest-admin"},
+	}); err != nil {
+		t.Fatal(err)
+	}
+	cookies := login.Result().Cookies()
+	if len(cookies) != 1 || cookies[0].Name != auth.SessionCookieName {
+		t.Fatalf("StartSession set cookies %v, want the session cookie", cookies)
+	}
+	cookie := cookies[0]
+	withCookie := func(req *http.Request) *http.Request {
+		req.AddCookie(cookie)
+		return req
+	}
+
+	rec, me := serve(t, router, withCookie(httptest.NewRequest(http.MethodGet, "/api/v1/me", nil)))
+	token, _ := me["csrfToken"].(string)
+	if rec.Code != http.StatusOK || token == "" {
+		t.Fatalf("GET /api/v1/me = %d %v, want 200 with a CSRF token", rec.Code, me)
+	}
+
+	patch := `{"dinner_time":"18:45"}`
+	refused := []struct {
+		name   string
+		req    *http.Request
+		status int
+	}{
+		{"no session", httptest.NewRequest(http.MethodPatch, settingsPath, strings.NewReader(patch)), http.StatusUnauthorized},
+		{"no CSRF token", withCookie(httptest.NewRequest(http.MethodPatch, settingsPath, strings.NewReader(patch))), http.StatusForbidden},
+	}
+	for _, tt := range refused {
+		if rec, body := serve(t, router, tt.req); rec.Code != tt.status {
+			t.Errorf("%s: PATCH status = %d, want %d: %v", tt.name, rec.Code, tt.status, body)
+		}
+	}
+	_, body := serve(t, router, withCookie(httptest.NewRequest(http.MethodGet, settingsPath, nil)))
+	if body["dinner_time"] != household.SeedDinnerTime || body["updated_by"] != nil {
+		t.Fatalf("refused PATCH changed settings: %v", body)
+	}
+
+	req := withCookie(httptest.NewRequest(http.MethodPatch, settingsPath, strings.NewReader(patch)))
+	req.Header.Set(CSRFHeader, token)
+	rec, body = serve(t, router, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("PATCH status = %d, want 200: %v", rec.Code, body)
+	}
+	if body["dinner_time"] != "18:45" || body["updated_by"] != "authentik-sub-42" {
+		t.Errorf("PATCH = %v, want dinner_time 18:45 updated_by authentik-sub-42", body)
+	}
+}

internal/store/id.go

@@ -0,0 +1,27 @@
+package store
+
+import (
+	"crypto/rand"
+	"sync"
+	"time"
+
+	"github.com/oklog/ulid/v2"
+)
+
+var (
+	idMu      sync.Mutex
+	idEntropy = ulid.Monotonic(rand.Reader, 0)
+	idLastMS  uint64
+)
+
+// NewID returns a new ULID as its canonical 26-character string. IDs from
+// this process sort strictly in creation order, including within one
+// millisecond and across a backwards wall-clock step. It panics if the
+// monotonic entropy overflows within a millisecond.
+func NewID() string {
+	idMu.Lock()
+	defer idMu.Unlock()
+	ms := max(ulid.Timestamp(time.Now()), idLastMS)
+	idLastMS = ms
+	return ulid.MustNew(ms, idEntropy).String()
+}

internal/store/id_test.go

@@ -0,0 +1,25 @@
+package store
+
+import (
+	"testing"
+
+	"github.com/oklog/ulid/v2"
+)
+
+func TestNewIDStrictlyIncreasing(t *testing.T) {
+	const n = 10000
+	prev := NewID()
+	for range n {
+		id := NewID()
+		if len(id) != ulid.EncodedSize {
+			t.Fatalf("NewID() = %q, want %d characters", id, ulid.EncodedSize)
+		}
+		if _, err := ulid.ParseStrict(id); err != nil {
+			t.Fatalf("NewID() = %q: %v", id, err)
+		}
+		if id <= prev {
+			t.Fatalf("NewID() = %q, not after previous %q", id, prev)
+		}
+		prev = id
+	}
+}

internal/store/migrate.go

@@ -0,0 +1,105 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"io/fs"
+	"strings"
+	"time"
+)
+
+const createSchemaMigrations = `CREATE TABLE IF NOT EXISTS schema_migrations (
+	version    TEXT PRIMARY KEY,
+	applied_at TEXT NOT NULL
+)`
+
+// Migrate applies every *.sql file at the root of migrations that is not yet
+// recorded in schema_migrations, in filename order. Each migration runs in its
+// own transaction together with the insert that records it, so a failing
+// migration leaves the database at the previous version. A version is the
+// file name without its .sql extension.
+//
+// The database must not hold a version unknown to migrations: that means it
+// was migrated by a newer build, and Migrate refuses to continue.
+func Migrate(ctx context.Context, db *sql.DB, migrations fs.FS) error {
+	files, err := fs.Glob(migrations, "*.sql")
+	if err != nil {
+		return fmt.Errorf("migrate: list migrations: %w", err)
+	}
+	if len(files) == 0 {
+		return fmt.Errorf("migrate: no migrations found")
+	}
+
+	if _, err := db.ExecContext(ctx, createSchemaMigrations); err != nil {
+		return fmt.Errorf("migrate: create schema_migrations: %w", err)
+	}
+	applied, err := appliedVersions(ctx, db)
+	if err != nil {
+		return err
+	}
+
+	known := make(map[string]bool, len(files))
+	for _, name := range files {
+		known[strings.TrimSuffix(name, ".sql")] = true
+	}
+	for version := range applied {
+		if !known[version] {
+			return fmt.Errorf("migrate: database has version %q, which this build does not know", version)
+		}
+	}
+
+	for _, name := range files { // fs.Glob returns names in lexical order
+		version := strings.TrimSuffix(name, ".sql")
+		if applied[version] {
+			continue
+		}
+		body, err := fs.ReadFile(migrations, name)
+		if err != nil {
+			return fmt.Errorf("migrate: read %s: %w", name, err)
+		}
+		if err := apply(ctx, db, version, string(body)); err != nil {
+			return fmt.Errorf("migrate: apply %s: %w", name, err)
+		}
+	}
+	return nil
+}
+
+func appliedVersions(ctx context.Context, db *sql.DB) (map[string]bool, error) {
+	rows, err := db.QueryContext(ctx, `SELECT version FROM schema_migrations`)
+	if err != nil {
+		return nil, fmt.Errorf("migrate: read schema_migrations: %w", err)
+	}
+	defer rows.Close()
+	applied := make(map[string]bool)
+	for rows.Next() {
+		var v string
+		if err := rows.Scan(&v); err != nil {
+			return nil, fmt.Errorf("migrate: read schema_migrations: %w", err)
+		}
+		applied[v] = true
+	}
+	if err := rows.Err(); err != nil {
+		return nil, fmt.Errorf("migrate: read schema_migrations: %w", err)
+	}
+	return applied, nil
+}
+
+func apply(ctx context.Context, db *sql.DB, version, body string) error {
+	tx, err := db.BeginTx(ctx, nil)
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback() // no-op once committed
+
+	if _, err := tx.ExecContext(ctx, body); err != nil {
+		return err
+	}
+	if _, err := tx.ExecContext(ctx,
+		`INSERT INTO schema_migrations (version, applied_at) VALUES (?, ?)`,
+		version, time.Now().UTC().Format(time.RFC3339),
+	); err != nil {
+		return err
+	}
+	return tx.Commit()
+}

internal/store/migrate_test.go

@@ -0,0 +1,311 @@
+package store
+
+import (
+	"context"
+	"io/fs"
+	"slices"
+	"strings"
+	"testing"
+	"testing/fstest"
+	"time"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+var testMigrations = fstest.MapFS{
+	"0001_first.sql":  {Data: []byte("CREATE TABLE first (id INTEGER PRIMARY KEY);")},
+	"0002_second.sql": {Data: []byte("CREATE TABLE second (id INTEGER PRIMARY KEY);\nCREATE TABLE third (id INTEGER PRIMARY KEY);")},
+	"README.md":       {Data: []byte("not a migration")},
+}
+
+type migrationRow struct {
+	version   string
+	appliedAt string
+}
+
+func migrationRows(t *testing.T, s *Store) []migrationRow {
+	t.Helper()
+	rows, err := s.Reader.Query("SELECT version, applied_at FROM schema_migrations ORDER BY version")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rows.Close()
+	var out []migrationRow
+	for rows.Next() {
+		var r migrationRow
+		if err := rows.Scan(&r.version, &r.appliedAt); err != nil {
+			t.Fatal(err)
+		}
+		out = append(out, r)
+	}
+	if err := rows.Err(); err != nil {
+		t.Fatal(err)
+	}
+	return out
+}
+
+func versions(rows []migrationRow) string {
+	vs := make([]string, len(rows))
+	for i, r := range rows {
+		vs[i] = r.version
+	}
+	return strings.Join(vs, ",")
+}
+
+func tableExists(t *testing.T, s *Store, name string) bool {
+	t.Helper()
+	var n int
+	if err := s.Reader.QueryRow("SELECT count(*) FROM sqlite_schema WHERE type = 'table' AND name = ?", name).Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	return n == 1
+}
+
+func TestMigrateFreshDatabaseReachesLatest(t *testing.T) {
+	s := openTestStore(t)
+	if err := Migrate(context.Background(), s.Writer, testMigrations); err != nil {
+		t.Fatal(err)
+	}
+	rows := migrationRows(t, s)
+	if got := versions(rows); got != "0001_first,0002_second" {
+		t.Fatalf("versions = %q", got)
+	}
+	for _, r := range rows {
+		if _, err := time.Parse(time.RFC3339, r.appliedAt); err != nil || !strings.HasSuffix(r.appliedAt, "Z") {
+			t.Errorf("applied_at %q is not UTC RFC 3339", r.appliedAt)
+		}
+	}
+	for _, table := range []string{"first", "second", "third"} {
+		if !tableExists(t, s, table) {
+			t.Errorf("table %s missing", table)
+		}
+	}
+}
+
+func TestMigrateSecondRunIsNoOp(t *testing.T) {
+	ctx := context.Background()
+	s := openTestStore(t)
+	if err := Migrate(ctx, s.Writer, testMigrations); err != nil {
+		t.Fatal(err)
+	}
+	before := migrationRows(t, s)
+	if err := Migrate(ctx, s.Writer, testMigrations); err != nil {
+		t.Fatalf("second run: %v", err)
+	}
+	after := migrationRows(t, s)
+	if len(after) != len(before) {
+		t.Fatalf("rows after second run = %v, want %v", after, before)
+	}
+	for i := range before {
+		if after[i] != before[i] {
+			t.Errorf("row %d changed: %v -> %v", i, before[i], after[i])
+		}
+	}
+}
+
+func TestMigrateBrokenMigrationRollsBack(t *testing.T) {
+	ctx := context.Background()
+	s := openTestStore(t)
+	if err := Migrate(ctx, s.Writer, testMigrations); err != nil {
+		t.Fatal(err)
+	}
+
+	broken := fstest.MapFS{"0003_broken.sql": {Data: []byte(
+		// The first statement succeeds; the second is invalid, so the
+		// table created by the first must be rolled back with it.
+		"CREATE TABLE fourth (id INTEGER PRIMARY KEY);\nCREATE TABLE oops (;",
+	)}}
+	for name, f := range testMigrations {
+		broken[name] = f
+	}
+	err := Migrate(ctx, s.Writer, broken)
+	if err == nil {
+		t.Fatal("broken migration returned no error")
+	}
+	if !strings.Contains(err.Error(), "0003_broken.sql") {
+		t.Errorf("error %q does not name the failing migration", err)
+	}
+	if got := versions(migrationRows(t, s)); got != "0001_first,0002_second" {
+		t.Errorf("versions after failure = %q, want previous version intact", got)
+	}
+	if tableExists(t, s, "fourth") {
+		t.Error("table from the failed migration was not rolled back")
+	}
+	for _, table := range []string{"first", "second", "third"} {
+		if !tableExists(t, s, table) {
+			t.Errorf("previous table %s missing after failed migration", table)
+		}
+	}
+}
+
+func TestMigrateAppliesInFilenameOrder(t *testing.T) {
+	s := openTestStore(t)
+	// 0002 depends on 0001; MapFS iteration order is random, so this only
+	// passes if migrations are sorted by name.
+	ordered := fstest.MapFS{
+		"0002_child.sql":  {Data: []byte("CREATE TABLE child (parent_id INTEGER REFERENCES parent(id)); INSERT INTO child VALUES (1);")},
+		"0001_parent.sql": {Data: []byte("CREATE TABLE parent (id INTEGER PRIMARY KEY); INSERT INTO parent VALUES (1);")},
+	}
+	if err := Migrate(context.Background(), s.Writer, ordered); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestMigrateUnknownAppliedVersionFails(t *testing.T) {
+	ctx := context.Background()
+	s := openTestStore(t)
+	if err := Migrate(ctx, s.Writer, testMigrations); err != nil {
+		t.Fatal(err)
+	}
+	older := fstest.MapFS{"0001_first.sql": testMigrations["0001_first.sql"]}
+	if err := Migrate(ctx, s.Writer, older); err == nil {
+		t.Fatal("migrating a database newer than the build returned no error")
+	}
+}
+
+func TestMigrateNoMigrationsFails(t *testing.T) {
+	s := openTestStore(t)
+	if err := Migrate(context.Background(), s.Writer, fstest.MapFS{}); err == nil {
+		t.Fatal("empty migrations returned no error")
+	}
+}
+
+func TestMigrateEmbeddedMigrations(t *testing.T) {
+	s := openTestStore(t)
+	if err := Migrate(context.Background(), s.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	if got := versions(migrationRows(t, s)); got != "0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status" {
+		t.Errorf("versions = %q, want 0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status", got)
+	}
+}
+
+func TestMigrateBootstrapThenEmbeddedInitApplies(t *testing.T) {
+	ctx := context.Background()
+	s := openTestStore(t)
+	bootstrap, err := fs.ReadFile(migrations.FS, "0000_bootstrap.sql")
+	if err != nil {
+		t.Fatal(err)
+	}
+	// A database migrated by the bootstrap-only build upgrades to the
+	// embedded set, which adds the later migrations alongside the unchanged
+	// bootstrap.
+	if err := Migrate(ctx, s.Writer, fstest.MapFS{"0000_bootstrap.sql": {Data: bootstrap}}); err != nil {
+		t.Fatal(err)
+	}
+	if err := Migrate(ctx, s.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	if got := versions(migrationRows(t, s)); got != "0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status" {
+		t.Errorf("versions = %q, want 0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status", got)
+	}
+	if !tableExists(t, s, "dinners") {
+		t.Error("table from 0001_init was not created")
+	}
+}
+
+// schemaSQL returns every schema object's definition, so a test can prove a
+// later Migrate created or altered nothing.
+func schemaSQL(t *testing.T, s *Store) []string {
+	t.Helper()
+	rows, err := s.Reader.Query("SELECT type || ' ' || name || ': ' || coalesce(sql, '') FROM sqlite_schema ORDER BY type, name")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rows.Close()
+	var out []string
+	for rows.Next() {
+		var def string
+		if err := rows.Scan(&def); err != nil {
+			t.Fatal(err)
+		}
+		out = append(out, def)
+	}
+	if err := rows.Err(); err != nil {
+		t.Fatal(err)
+	}
+	return out
+}
+
+func TestMigrateReopenSameDataDirIsNoOp(t *testing.T) {
+	ctx := context.Background()
+	dir := t.TempDir()
+
+	first, err := Open(ctx, dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := Migrate(ctx, first.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	before, beforeSchema := migrationRows(t, first), schemaSQL(t, first)
+	if err := first.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	second, err := Open(ctx, dir)
+	if err != nil {
+		t.Fatalf("reopen: %v", err)
+	}
+	t.Cleanup(func() {
+		if err := second.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	if err := Migrate(ctx, second.Writer, migrations.FS); err != nil {
+		t.Fatalf("migrate after reopen: %v", err)
+	}
+	if after := migrationRows(t, second); !slices.Equal(after, before) {
+		t.Errorf("schema_migrations changed on reopen:\n got %v\nwant %v", after, before)
+	}
+	if afterSchema := schemaSQL(t, second); !slices.Equal(afterSchema, beforeSchema) {
+		t.Errorf("schema changed on reopen:\n got %v\nwant %v", afterSchema, beforeSchema)
+	}
+}
+
+// TestMigrateJobsStatusMapsLegacyRows upgrades a database holding jobs in
+// every 0001 status and checks 0003 carries each row over with its status
+// mapped and every other column unchanged.
+func TestMigrateJobsStatusMapsLegacyRows(t *testing.T) {
+	ctx := context.Background()
+	s := openTestStore(t)
+	before := fstest.MapFS{}
+	for _, name := range []string{"0000_bootstrap.sql", "0001_init.sql", "0002_household_settings_updated_by.sql"} {
+		body, err := fs.ReadFile(migrations.FS, name)
+		if err != nil {
+			t.Fatal(err)
+		}
+		before[name] = &fstest.MapFile{Data: body}
+	}
+	if err := Migrate(ctx, s.Writer, before); err != nil {
+		t.Fatal(err)
+	}
+	legacy := map[string]string{"pending": "queued", "running": "running", "done": "succeeded", "failed": "failed"}
+	for old := range legacy {
+		if _, err := s.Writer.Exec(`INSERT INTO jobs (id, kind, status, payload, result, error, started_at, finished_at, created_at, updated_at)
+			VALUES (?, 'suggest', ?, '{"n":1}', '{"r":2}', 'boom', 's', 'f', 'c', 'u')`, "job-"+old, old); err != nil {
+			t.Fatalf("insert %s job: %v", old, err)
+		}
+	}
+
+	if err := Migrate(ctx, s.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	for old, want := range legacy {
+		var kind, status, payload, result, errText, startedAt, finishedAt, createdAt, updatedAt string
+		if err := s.Reader.QueryRow(`SELECT kind, status, payload, result, error, started_at, finished_at, created_at, updated_at FROM jobs WHERE id = ?`, "job-"+old).
+			Scan(&kind, &status, &payload, &result, &errText, &startedAt, &finishedAt, &createdAt, &updatedAt); err != nil {
+			t.Fatalf("read %s job: %v", old, err)
+		}
+		if status != want {
+			t.Errorf("%s job status = %q, want %q", old, status, want)
+		}
+		got := []string{kind, payload, result, errText, startedAt, finishedAt, createdAt, updatedAt}
+		if wantCols := []string{"suggest", `{"n":1}`, `{"r":2}`, "boom", "s", "f", "c", "u"}; !slices.Equal(got, wantCols) {
+			t.Errorf("%s job columns = %v, want %v", old, got, wantCols)
+		}
+	}
+	if tableExists(t, s, "jobs_new") {
+		t.Error("jobs_new left behind")
+	}
+}

internal/store/repository_test.go

@@ -0,0 +1,177 @@
+package store
+
+import (
+	"context"
+	"fmt"
+	"maps"
+	"reflect"
+	"slices"
+	"strings"
+	"testing"
+)
+
+// The tables below have no public sqlc queries yet (they arrive with the
+// planning, suggestion and Supply run features), so these tests drive them
+// with raw SQL to prove the schema stores, returns and updates their rows.
+
+const repoTime = "2026-10-03T12:00:00Z"
+
+type repoRow struct {
+	table string
+	cols  map[string]any
+}
+
+// repoParents are the rows the tables under test reference, in insert order.
+var repoParents = map[string]repoRow{
+	"dinners": {"dinners", map[string]any{
+		"id": "dinner-1", "name": "Chili", "normalized_name": "chili",
+		"status": "regular", "origin": "regular", "is_favorite": int64(0),
+		"grounding_status": "manual", "created_at": repoTime, "updated_at": repoTime,
+	}},
+	"suggestion_batches": {"suggestion_batches", map[string]any{
+		"id": "batch-1", "trigger": "manual", "status": "done",
+		"created_at": repoTime, "updated_at": repoTime,
+	}},
+	"week_plans": {"week_plans", map[string]any{
+		"id": "plan-1", "week_start": "2026-10-05", "status": "draft",
+		"created_at": repoTime, "updated_at": repoTime,
+	}},
+	"shopping_lists": {"shopping_lists", map[string]any{
+		"id": "list-1", "week_start": "2026-10-05", "plan_id": "plan-1",
+		"title": "Supply run", "status": "current",
+		"created_at": repoTime, "updated_at": repoTime,
+	}},
+	"shopping_groups": {"shopping_groups", map[string]any{
+		"id": "group-1", "list_id": "list-1", "dinner_id": "dinner-1",
+		"position": int64(0), "created_at": repoTime, "updated_at": repoTime,
+	}},
+}
+
+// readRepoRow reads cols of the row with id through the reader.
+func readRepoRow(t *testing.T, s *Store, table, id string, cols []string) map[string]any {
+	t.Helper()
+	quoted := make([]string, len(cols))
+	vals := make([]any, len(cols))
+	ptrs := make([]any, len(cols))
+	for i, c := range cols {
+		quoted[i] = `"` + c + `"`
+		ptrs[i] = &vals[i]
+	}
+	q := fmt.Sprintf(`SELECT %s FROM "%s" WHERE id = ?`, strings.Join(quoted, ", "), table)
+	if err := s.Reader.QueryRowContext(context.Background(), q, id).Scan(ptrs...); err != nil {
+		t.Fatalf("read %s %s: %v", table, id, err)
+	}
+	got := make(map[string]any, len(cols))
+	for i, c := range cols {
+		got[c] = vals[i]
+	}
+	return got
+}
+
+func TestRepositoryInsertReadUpdate(t *testing.T) {
+	cases := []struct {
+		parents []string
+		row     repoRow
+		update  map[string]any
+	}{
+		{
+			row: repoRow{"week_plans", map[string]any{
+				"id": "plan-2", "week_start": "2026-10-12", "status": "draft",
+				"ai_note": "Two Side quests this week.", "ai_run_id": nil, "calendar_synced_at": nil,
+				"created_at": repoTime, "updated_at": repoTime,
+			}},
+			update: map[string]any{"status": "synced", "calendar_synced_at": "2026-10-04T09:00:00Z"},
+		},
+		{
+			parents: []string{"dinners", "week_plans"},
+			row: repoRow{"plan_days", map[string]any{
+				"id": "day-1", "plan_id": "plan-1", "date": "2026-10-06", "dinner_id": "dinner-1",
+				"is_new": int64(0), "calendar_event_id": nil,
+				"created_at": repoTime, "updated_at": repoTime,
+			}},
+			update: map[string]any{"dinner_id": nil, "calendar_event_id": "evt-123"},
+		},
+		{
+			parents: []string{"dinners", "suggestion_batches"},
+			row: repoRow{"suggestions", map[string]any{
+				"id": "sugg-1", "dinner_id": "dinner-1", "batch_id": "batch-1",
+				"reason": "You make chili often.", "cited_regular_ids": `["dinner-1"]`,
+				"status": "pending", "decided_at": nil,
+				"created_at": repoTime, "updated_at": repoTime,
+			}},
+			update: map[string]any{"status": "accepted", "decided_at": "2026-10-04T10:00:00Z"},
+		},
+		{
+			parents: []string{"week_plans"},
+			row: repoRow{"shopping_lists", map[string]any{
+				"id": "list-2", "week_start": "2026-10-05", "plan_id": "plan-1",
+				"title": "Supply run", "status": "current", "sent_to_chat_at": nil, "frozen_at": nil,
+				"created_at": repoTime, "updated_at": repoTime,
+			}},
+			update: map[string]any{"status": "archived", "frozen_at": "2026-10-12T00:00:00Z"},
+		},
+		{
+			parents: []string{"dinners", "week_plans", "shopping_lists"},
+			row: repoRow{"shopping_groups", map[string]any{
+				"id": "group-2", "list_id": "list-1", "dinner_id": "dinner-1", "position": int64(0),
+				"created_at": repoTime, "updated_at": repoTime,
+			}},
+			update: map[string]any{"position": int64(3)},
+		},
+		{
+			parents: []string{"dinners", "week_plans", "shopping_lists", "shopping_groups"},
+			row: repoRow{"shopping_items", map[string]any{
+				"id": "item-1", "group_id": "group-1", "name": "Onion", "qty": "2",
+				"needed": int64(1), "position": int64(0),
+				"created_at": repoTime, "updated_at": repoTime,
+			}},
+			update: map[string]any{"needed": int64(0), "qty": "3"},
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.row.table, func(t *testing.T) {
+			ctx := context.Background()
+			s := migratedStore(t)
+			for _, p := range tc.parents {
+				parent := repoParents[p]
+				if err := insertSchemaRow(s.Writer, parent.table, parent.cols); err != nil {
+					t.Fatalf("seed %s: %v", p, err)
+				}
+			}
+
+			table, id := tc.row.table, tc.row.cols["id"].(string)
+			cols := slices.Sorted(maps.Keys(tc.row.cols))
+
+			if err := insertSchemaRow(s.Writer, table, tc.row.cols); err != nil {
+				t.Fatalf("insert: %v", err)
+			}
+			if got := readRepoRow(t, s, table, id, cols); !reflect.DeepEqual(got, tc.row.cols) {
+				t.Fatalf("read after insert:\n got %v\nwant %v", got, tc.row.cols)
+			}
+
+			want := maps.Clone(tc.row.cols)
+			maps.Copy(want, tc.update)
+			want["updated_at"] = "2026-10-04T12:00:00Z"
+			setCols := slices.Sorted(maps.Keys(tc.update))
+			sets := make([]string, 0, len(setCols)+1)
+			args := make([]any, 0, len(setCols)+2)
+			for _, c := range append(setCols, "updated_at") {
+				sets = append(sets, `"`+c+`" = ?`)
+				args = append(args, want[c])
+			}
+			args = append(args, id)
+			q := fmt.Sprintf(`UPDATE "%s" SET %s WHERE id = ?`, table, strings.Join(sets, ", "))
+			res, err := s.Writer.ExecContext(ctx, q, args...)
+			if err != nil {
+				t.Fatalf("update: %v", err)
+			}
+			if n, err := res.RowsAffected(); err != nil || n != 1 {
+				t.Fatalf("update affected %d rows (err %v), want 1", n, err)
+			}
+			if got := readRepoRow(t, s, table, id, cols); !reflect.DeepEqual(got, want) {
+				t.Fatalf("read after update:\n got %v\nwant %v", got, want)
+			}
+		})
+	}
+}

internal/store/schema_test.go

@@ -0,0 +1,556 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"slices"
+	"strings"
+	"testing"
+
+	"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/migrations"
+)
+
+// schemaTables is every table in the v1 data model, in insert order: parents
+// before the children that reference them.
+var schemaTables = []string{
+	"ai_runs",
+	"recipes",
+	"recipe_ingredients",
+	"recipe_steps",
+	"photos",
+	"dinners",
+	"suggestion_batches",
+	"suggestions",
+	"week_plans",
+	"plan_days",
+	"rotation_reviews",
+	"shopping_lists",
+	"shopping_groups",
+	"shopping_items",
+	"notification_prefs",
+	"push_subscriptions",
+	"notification_outbox",
+	"jobs",
+	"schedule_runs",
+	"sessions",
+	// Single-row settings tables; row is always id 1.
+	"household_settings",
+	"ai_settings",
+	"recipe_search_settings",
+	"integrations_google",
+	"chat_settings",
+}
+
+var singleRowTables = []string{
+	"household_settings",
+	"ai_settings",
+	"recipe_search_settings",
+	"integrations_google",
+	"chat_settings",
+}
+
+const testTime = "2026-10-03T12:00:00Z"
+
+// rowID is the id of the i-th test row of table. The schema stores ids as
+// opaque TEXT, so deterministic ids keep the fixtures readable.
+func rowID(table string, i int) string { return fmt.Sprintf("%s-%d", table, i) }
+
+// testRow returns a valid row for table. Rows with different i differ in
+// every unique column; references point at row 0 of the parent table.
+func testRow(table string, i int) map[string]any {
+	ts := map[string]any{"created_at": testTime, "updated_at": testTime}
+	r := map[string]any{"id": rowID(table, i)}
+	switch table {
+	case "household_settings":
+		r = map[string]any{"id": 1, "timezone": "America/New_York"}
+	case "ai_runs":
+		r["skill"] = "suggest"
+		r["skill_version"] = "1"
+		r["provider"] = "anthropic"
+		r["model"] = "claude"
+		r["temperature"] = 0.7
+		r["status"] = "ok"
+		r["request_redacted"] = "{}"
+	case "recipes":
+		r["source_url"] = fmt.Sprintf("https://example.com/recipe/%d", i)
+		r["title"] = "Chili"
+		r["raw_jsonld"] = "{}"
+		r["fetched_at"] = testTime
+	case "recipe_ingredients":
+		r["recipe_id"] = rowID("recipes", 0)
+		r["position"] = i
+		r["raw_text"] = "1 onion"
+	case "recipe_steps":
+		r["recipe_id"] = rowID("recipes", 0)
+		r["position"] = i
+		r["text"] = "Chop the onion."
+	case "photos":
+		r["source_url"] = "https://example.com/chili.jpg"
+		r["local_path"] = "photos/chili.jpg"
+		r["width"] = 800
+		r["height"] = 600
+		r["sha256"] = "abc"
+		r["fetched_at"] = testTime
+	case "dinners":
+		r["name"] = "Chili"
+		r["normalized_name"] = "chili"
+		r["status"] = "regular"
+		r["origin"] = "regular"
+		r["method"] = "crockpot"
+		r["difficulty"] = "easy"
+		r["is_favorite"] = 0
+		r["recipe_id"] = rowID("recipes", 0)
+		r["photo_id"] = rowID("photos", 0)
+		r["grounding_status"] = "grounded"
+	case "suggestion_batches":
+		r["trigger"] = "scheduled"
+		r["status"] = "done"
+		r["ai_run_id"] = rowID("ai_runs", 0)
+	case "suggestions":
+		r["dinner_id"] = rowID("dinners", 0)
+		r["batch_id"] = rowID("suggestion_batches", 0)
+		r["reason"] = "Like your chili."
+		r["cited_regular_ids"] = "[]"
+		r["status"] = "pending"
+	case "week_plans":
+		r["week_start"] = fmt.Sprintf("2026-%02d-05", i+1)
+		r["status"] = "draft"
+		r["ai_run_id"] = rowID("ai_runs", 0)
+	case "plan_days":
+		r["plan_id"] = rowID("week_plans", 0)
+		r["date"] = fmt.Sprintf("2026-01-%02d", i+5)
+		r["dinner_id"] = rowID("dinners", 0)
+		r["is_new"] = 0
+	case "rotation_reviews":
+		r["dinner_id"] = rowID("dinners", 0)
+		r["plan_date"] = fmt.Sprintf("2026-01-%02d", i+5)
+		r["status"] = "decided"
+		r["decision"] = "keep"
+	case "shopping_lists":
+		r["week_start"] = fmt.Sprintf("2026-%02d-05", i+1)
+		r["plan_id"] = rowID("week_plans", 0)
+		r["title"] = "Supply run"
+		r["status"] = "current"
+	case "shopping_groups":
+		r["list_id"] = rowID("shopping_lists", 0)
+		r["dinner_id"] = rowID("dinners", 0)
+		r["position"] = i
+	case "shopping_items":
+		r["group_id"] = rowID("shopping_groups", 0)
+		r["name"] = "Onion"
+		r["needed"] = 1
+		r["position"] = i
+	case "ai_settings":
+		r = map[string]any{"id": 1, "provider": "ollama", "base_url": "http://ollama:11434", "model": "llama", "temperature": 0.7}
+	case "recipe_search_settings":
+		r = map[string]any{"id": 1, "provider": "searxng", "base_url": "http://searxng:8080"}
+	case "integrations_google":
+		r = map[string]any{"id": 1, "refresh_token_ct": []byte{1}, "connected_at": testTime}
+	case "chat_settings":
+		r = map[string]any{"id": 1, "webhook_url_ct": []byte{1}, "last_test_status": "ok"}
+	case "notification_prefs":
+		events := []string{"plan_ready", "list_ready", "day_of_reminder", "new_suggestions", "rotation_review"}
+		r = map[string]any{"event": events[i], "push": 1, "chat": 0}
+	case "push_subscriptions":
+		r["endpoint"] = fmt.Sprintf("https://push.example.com/%d", i)
+		r["p256dh"] = "key"
+		r["auth"] = "auth"
+		r["failure_count"] = 0
+	case "notification_outbox":
+		r["event_key"] = fmt.Sprintf("plan_ready:2026-W%02d", i+1)
+		r["channel"] = "push"
+		r["payload"] = "{}"
+		r["status"] = "pending"
+		r["attempts"] = 0
+	case "jobs":
+		r["kind"] = "suggest"
+		r["status"] = "queued"
+		r["payload"] = "{}"
+	case "schedule_runs":
+		r["schedule"] = "plan_draft"
+		r["period_key"] = fmt.Sprintf("2026-W%02d", i+1)
+		r["created_at"] = testTime
+		return r
+	case "sessions":
+		return map[string]any{
+			"id_hash":      fmt.Sprintf("hash-%d", i),
+			"subject":      "sub",
+			"email":        "kitchen@example.com",
+			"name":         "Our kitchen",
+			"groups":       `["mealquest-admin"]`,
+			"csrf_token":   "csrf",
+			"created_at":   testTime,
+			"last_seen_at": testTime,
+			"expires_at":   testTime,
+		}
+	default:
+		panic("testRow: unknown table " + table)
+	}
+	for k, v := range ts {
+		r[k] = v
+	}
+	return r
+}
+
+type execer interface {
+	ExecContext(ctx context.Context, query string, args ...any) (sql.Result, error)
+}
+
+func insertSchemaRow(db execer, table string, row map[string]any) error {
+	cols := make([]string, 0, len(row))
+	for c := range row {
+		cols = append(cols, c)
+	}
+	slices.Sort(cols)
+	quoted := make([]string, len(cols))
+	args := make([]any, len(cols))
+	for i, c := range cols {
+		quoted[i] = `"` + c + `"`
+		args[i] = row[c]
+	}
+	q := fmt.Sprintf(`INSERT INTO "%s" (%s) VALUES (%s)`,
+		table, strings.Join(quoted, ", "), strings.TrimSuffix(strings.Repeat("?, ", len(cols)), ", "))
+	_, err := db.ExecContext(context.Background(), q, args...)
+	return err
+}
+
+// migratedStore opens a temp store migrated with the embedded migrations.
+func migratedStore(t *testing.T) *Store {
+	t.Helper()
+	s := openTestStore(t)
+	if err := Migrate(context.Background(), s.Writer, migrations.FS); err != nil {
+		t.Fatal(err)
+	}
+	return s
+}
+
+// seededStore is a migrated store holding row 0 of every multi-row table.
+// Single-row tables are left empty so tests can insert their only row.
+func seededStore(t *testing.T) *Store {
+	t.Helper()
+	s := migratedStore(t)
+	for _, table := range schemaTables {
+		if slices.Contains(singleRowTables, table) {
+			continue
+		}
+		if err := insertSchemaRow(s.Writer, table, testRow(table, 0)); err != nil {
+			t.Fatalf("seed %s: %v", table, err)
+		}
+	}
+	return s
+}
+
+// inRolledBackTx runs fn in a writer transaction that is always rolled back,
+// so each case starts from the seeded state.
+func inRolledBackTx(t *testing.T, s *Store, fn func(tx *sql.Tx)) {
+	t.Helper()
+	tx, err := s.Writer.BeginTx(context.Background(), nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		if err := tx.Rollback(); err != nil {
+			t.Fatal(err)
+		}
+	}()
+	fn(tx)
+}
+
+func wantConstraintError(t *testing.T, err error, kind, what string) {
+	t.Helper()
+	if err == nil {
+		t.Fatalf("%s: accepted, want %s constraint failure", what, kind)
+	}
+	if !strings.Contains(err.Error(), kind+" constraint failed") {
+		t.Fatalf("%s: error %q, want %s constraint failure", what, err, kind)
+	}
+}
+
+func TestSchemaTablesExist(t *testing.T) {
+	s := migratedStore(t)
+	if len(schemaTables) != 25 {
+		t.Fatalf("schemaTables lists %d tables, want 25", len(schemaTables))
+	}
+	for _, table := range schemaTables {
+		if !tableExists(t, s, table) {
+			t.Errorf("table %s missing", table)
+		}
+	}
+}
+
+func TestSchemaForeignKeysAreValid(t *testing.T) {
+	s := seededStore(t)
+	rows, err := s.Writer.Query("PRAGMA foreign_key_check")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rows.Close()
+	if rows.Next() {
+		t.Error("foreign_key_check reported violations in the seeded data")
+	}
+	if err := rows.Err(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestSchemaEnumChecksRejectInvalidValues(t *testing.T) {
+	cases := []struct {
+		table, column string
+		bad           any
+	}{
+		{"household_settings", "plan_draft_dow", 7},
+		{"household_settings", "suggestions_dow", -1},
+		{"household_settings", "chat_autosend_dow", 7},
+		{"household_settings", "plan_draft_dow", 5.5},
+		{"household_settings", "suggestions_dow", 0.5},
+		{"household_settings", "chat_autosend_dow", 3.5},
+		{"ai_runs", "provider", "openai"},
+		{"ai_runs", "status", "done"},
+		{"dinners", "status", "deck"},
+		{"dinners", "origin", "ai"},
+		{"dinners", "method", "microwave"},
+		{"dinners", "difficulty", "extreme"},
+		{"dinners", "is_favorite", 2},
+		{"dinners", "grounding_status", "unknown"},
+		{"suggestion_batches", "trigger", "cron"},
+		{"suggestion_batches", "status", "ok"},
+		{"suggestions", "status", "maybe"},
+		{"week_plans", "status", "final"},
+		{"plan_days", "is_new", 2},
+		{"rotation_reviews", "status", "open"},
+		{"rotation_reviews", "decision", "promote"},
+		{"shopping_lists", "status", "frozen"},
+		{"shopping_items", "needed", 2},
+		{"ai_settings", "provider", "openai"},
+		{"recipe_search_settings", "provider", "google"},
+		{"chat_settings", "last_test_status", "pending"},
+		{"notification_prefs", "event", "weekly_digest"},
+		{"notification_prefs", "push", 2},
+		{"notification_prefs", "chat", 2},
+		{"notification_outbox", "channel", "email"},
+		{"notification_outbox", "status", "queued"},
+		{"jobs", "status", "bogus"},
+		{"schedule_runs", "schedule", "hourly"},
+	}
+	s := seededStore(t)
+	for _, c := range cases {
+		t.Run(fmt.Sprintf("%s.%s=%v", c.table, c.column, c.bad), func(t *testing.T) {
+			row := testRow(c.table, 1)
+			if slices.Contains(singleRowTables, c.table) {
+				row = testRow(c.table, 0)
+			}
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				if err := insertSchemaRow(tx, c.table, row); err != nil {
+					t.Fatalf("valid row rejected: %v", err)
+				}
+			})
+			row[c.column] = c.bad
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				wantConstraintError(t, insertSchemaRow(tx, c.table, row), "CHECK", fmt.Sprintf("%s.%s = %v", c.table, c.column, c.bad))
+			})
+		})
+	}
+}
+
+func TestSchemaRotationReviewEventAllowed(t *testing.T) {
+	s := migratedStore(t)
+	if err := insertSchemaRow(s.Writer, "notification_prefs", testRow("notification_prefs", 4)); err != nil {
+		t.Fatalf("rotation_review event rejected: %v", err)
+	}
+}
+
+func TestSchemaDinnerStatuses(t *testing.T) {
+	s := seededStore(t)
+	for _, status := range []string{"suggested", "quest_log", "tried", "regular", "archived"} {
+		inRolledBackTx(t, s, func(tx *sql.Tx) {
+			row := testRow("dinners", 1)
+			row["status"] = status
+			if err := insertSchemaRow(tx, "dinners", row); err != nil {
+				t.Errorf("status %s rejected: %v", status, err)
+			}
+		})
+	}
+}
+
+func TestSchemaUniqueConstraintsRejectDuplicates(t *testing.T) {
+	cases := []struct {
+		table   string
+		columns []string
+	}{
+		{"recipes", []string{"source_url"}},
+		{"week_plans", []string{"week_start"}},
+		{"plan_days", []string{"plan_id", "date"}},
+		{"rotation_reviews", []string{"dinner_id", "plan_date"}},
+		{"shopping_lists", []string{"week_start"}},
+		{"push_subscriptions", []string{"endpoint"}},
+		{"notification_outbox", []string{"event_key", "channel"}},
+		{"schedule_runs", []string{"schedule", "period_key"}},
+		{"notification_prefs", []string{"event"}},
+	}
+	s := seededStore(t)
+	for _, c := range cases {
+		t.Run(c.table+"("+strings.Join(c.columns, ",")+")", func(t *testing.T) {
+			row := testRow(c.table, 1)
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				if err := insertSchemaRow(tx, c.table, row); err != nil {
+					t.Fatalf("distinct row rejected: %v", err)
+				}
+			})
+			seeded := testRow(c.table, 0)
+			for _, col := range c.columns {
+				row[col] = seeded[col]
+			}
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				wantConstraintError(t, insertSchemaRow(tx, c.table, row), "UNIQUE", "duplicate "+c.table)
+			})
+		})
+	}
+}
+
+// TestSchemaCompositeUniqueAllowsPartialOverlap shows each composite UNIQUE
+// spans all its columns: a row sharing only some of them with the seeded row
+// is accepted. (Sharing only the other columns is covered by the distinct row
+// in TestSchemaUniqueConstraintsRejectDuplicates.)
+func TestSchemaCompositeUniqueAllowsPartialOverlap(t *testing.T) {
+	cases := []struct {
+		name   string
+		table  string
+		shared string         // column copied from the seeded row
+		parent string         // row 1 of this table is inserted first, if set
+		set    map[string]any // columns that differ from the seeded row
+	}{
+		{"same date, different plan", "plan_days", "date", "week_plans", map[string]any{"plan_id": rowID("week_plans", 1)}},
+		{"same plan_date, different dinner", "rotation_reviews", "plan_date", "dinners", map[string]any{"dinner_id": rowID("dinners", 1)}},
+		{"same event_key, different channel", "notification_outbox", "event_key", "", map[string]any{"channel": "chat"}},
+		{"same period_key, different schedule", "schedule_runs", "period_key", "", map[string]any{"schedule": "week_rollover"}},
+	}
+	s := seededStore(t)
+	for _, c := range cases {
+		t.Run(c.table+": "+c.name, func(t *testing.T) {
+			row := testRow(c.table, 1)
+			row[c.shared] = testRow(c.table, 0)[c.shared]
+			for k, v := range c.set {
+				row[k] = v
+			}
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				if c.parent != "" {
+					if err := insertSchemaRow(tx, c.parent, testRow(c.parent, 1)); err != nil {
+						t.Fatalf("insert parent: %v", err)
+					}
+				}
+				if err := insertSchemaRow(tx, c.table, row); err != nil {
+					t.Fatalf("row rejected: %v", err)
+				}
+			})
+		})
+	}
+}
+
+// TestSchemaTextPrimaryKeysRejectNull guards against SQLite's legacy
+// acceptance of NULL in non-INTEGER primary keys.
+func TestSchemaTextPrimaryKeysRejectNull(t *testing.T) {
+	s := seededStore(t)
+	ctx := context.Background()
+	for _, table := range schemaTables {
+		if slices.Contains(singleRowTables, table) {
+			continue
+		}
+		key := "id"
+		switch table {
+		case "notification_prefs":
+			key = "event"
+		case "sessions":
+			key = "id_hash"
+		}
+		t.Run(table+"."+key, func(t *testing.T) {
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				// Two NULL-key rows: neither may be accepted, so NULL can
+				// never stand in for a key, once or repeatedly.
+				for i := 1; i <= 2; i++ {
+					row := testRow(table, i)
+					row[key] = nil
+					wantConstraintError(t, insertSchemaRow(tx, table, row), "NOT NULL", fmt.Sprintf("%s.%s = NULL (row %d)", table, key, i))
+				}
+				var n int
+				if err := tx.QueryRowContext(ctx, fmt.Sprintf(`SELECT count(*) FROM "%s" WHERE "%s" IS NULL`, table, key)).Scan(&n); err != nil {
+					t.Fatal(err)
+				}
+				if n != 0 {
+					t.Errorf("%d rows with NULL %s", n, key)
+				}
+			})
+		})
+	}
+}
+
+func TestSchemaSingleRowTablesRejectSecondRow(t *testing.T) {
+	s := migratedStore(t)
+	for _, table := range singleRowTables {
+		if err := insertSchemaRow(s.Writer, table, testRow(table, 0)); err != nil {
+			t.Fatalf("%s: %v", table, err)
+		}
+		row := testRow(table, 0)
+		row["id"] = 2
+		wantConstraintError(t, insertSchemaRow(s.Writer, table, row), "CHECK", table+" second row")
+	}
+}
+
+func TestSchemaDeleteParentWithChildrenRefused(t *testing.T) {
+	cases := []struct{ parent, child, column string }{
+		{"recipes", "recipe_ingredients", "recipe_id"},
+		{"recipes", "recipe_steps", "recipe_id"},
+		{"recipes", "dinners", "recipe_id"},
+		{"photos", "dinners", "photo_id"},
+		{"dinners", "suggestions", "dinner_id"},
+		{"suggestion_batches", "suggestions", "batch_id"},
+		{"week_plans", "plan_days", "plan_id"},
+		{"dinners", "plan_days", "dinner_id"},
+		{"dinners", "rotation_reviews", "dinner_id"},
+		{"week_plans", "shopping_lists", "plan_id"},
+		{"shopping_lists", "shopping_groups", "list_id"},
+		{"dinners", "shopping_groups", "dinner_id"},
+		{"shopping_groups", "shopping_items", "group_id"},
+		// ai_runs too: the purge must clear references before deleting.
+		{"ai_runs", "suggestion_batches", "ai_run_id"},
+		{"ai_runs", "week_plans", "ai_run_id"},
+	}
+	s := seededStore(t)
+	for _, c := range cases {
+		t.Run(c.parent+"<-"+c.child+"."+c.column, func(t *testing.T) {
+			// A fresh parent with exactly one child, through this column only.
+			parentID := rowID(c.parent, 1)
+			child := testRow(c.child, 1)
+			child[c.column] = parentID
+			del := fmt.Sprintf(`DELETE FROM "%s" WHERE id = ?`, c.parent)
+			ctx := context.Background()
+
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				if err := insertSchemaRow(tx, c.parent, testRow(c.parent, 1)); err != nil {
+					t.Fatalf("insert parent: %v", err)
+				}
+				if err := insertSchemaRow(tx, c.child, child); err != nil {
+					t.Fatalf("insert child: %v", err)
+				}
+				_, err := tx.ExecContext(ctx, del, parentID)
+				wantConstraintError(t, err, "FOREIGN KEY", "delete "+c.parent)
+				var n int
+				if err := tx.QueryRowContext(ctx, fmt.Sprintf(`SELECT count(*) FROM "%s" WHERE id = ?`, c.parent), parentID).Scan(&n); err != nil {
+					t.Fatal(err)
+				}
+				if n != 1 {
+					t.Errorf("parent row gone after refused delete")
+				}
+			})
+			// Control: without the child the same delete succeeds.
+			inRolledBackTx(t, s, func(tx *sql.Tx) {
+				if err := insertSchemaRow(tx, c.parent, testRow(c.parent, 1)); err != nil {
+					t.Fatalf("insert parent: %v", err)
+				}
+				if _, err := tx.ExecContext(ctx, del, parentID); err != nil {
+					t.Fatalf("delete childless parent: %v", err)
+				}
+			})
+		})
+	}
+}

internal/store/store.go

@@ -0,0 +1,79 @@
+// Package store owns the MealQuest SQLite database: one writer connection,
+// a read pool, and the embedded schema migrations.
+package store
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"net/url"
+	"path/filepath"
+
+	_ "modernc.org/sqlite" // registers the "sqlite" database/sql driver
+)
+
+// FileName is the database file inside the data directory.
+const FileName = "mealquest.db"
+
+// readPoolSize is the maximum number of open read connections.
+const readPoolSize = 4
+
+// connPragmas are applied by the driver to every new connection.
+var connPragmas = []string{
+	"busy_timeout(5000)",
+	"journal_mode(WAL)",
+	"foreign_keys(1)",
+}
+
+// Store holds the database handles. All writes go through Writer, which has
+// exactly one connection; Reader is a pool of read-only connections.
+type Store struct {
+	Writer *sql.DB
+	Reader *sql.DB
+}
+
+// Open opens <dataDir>/mealquest.db, creating it if absent, and verifies both
+// handles can connect. It does not apply migrations; call Migrate for that.
+func Open(ctx context.Context, dataDir string) (*Store, error) {
+	path, err := filepath.Abs(filepath.Join(dataDir, FileName))
+	if err != nil {
+		return nil, fmt.Errorf("store: resolve database path: %w", err)
+	}
+
+	// The writer is opened and pinged first so the file exists and is in WAL
+	// mode before any read-only connection touches it.
+	writer, err := openDB(ctx, path, 1, url.Values{"_txlock": {"immediate"}})
+	if err != nil {
+		return nil, fmt.Errorf("store: open writer: %w", err)
+	}
+	reader, err := openDB(ctx, path, readPoolSize, url.Values{"_pragma": {"query_only(1)"}})
+	if err != nil {
+		return nil, errors.Join(fmt.Errorf("store: open reader: %w", err), writer.Close())
+	}
+	return &Store{Writer: writer, Reader: reader}, nil
+}
+
+// Close closes both handles.
+func (s *Store) Close() error {
+	return errors.Join(s.Reader.Close(), s.Writer.Close())
+}
+
+func openDB(ctx context.Context, path string, maxConns int, extra url.Values) (*sql.DB, error) {
+	q := url.Values{"_pragma": connPragmas}
+	for k, vs := range extra {
+		q[k] = append(q[k], vs...)
+	}
+	dsn := (&url.URL{Scheme: "file", Path: path, RawQuery: q.Encode()}).String()
+
+	db, err := sql.Open("sqlite", dsn)
+	if err != nil {
+		return nil, err
+	}
+	db.SetMaxOpenConns(maxConns)
+	db.SetMaxIdleConns(maxConns)
+	if err := db.PingContext(ctx); err != nil {
+		return nil, errors.Join(err, db.Close())
+	}
+	return db, nil
+}

internal/store/store_test.go

@@ -0,0 +1,116 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func openTestStore(t *testing.T) *Store {
+	t.Helper()
+	s, err := Open(context.Background(), t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := s.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	return s
+}
+
+func TestOpenCreatesDatabaseFile(t *testing.T) {
+	dir := t.TempDir()
+	s, err := Open(context.Background(), dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer s.Close()
+	if _, err := os.Stat(filepath.Join(dir, FileName)); err != nil {
+		t.Fatalf("database file: %v", err)
+	}
+}
+
+func TestOpenMissingDirFails(t *testing.T) {
+	_, err := Open(context.Background(), filepath.Join(t.TempDir(), "missing"))
+	if err == nil {
+		t.Fatal("Open succeeded on a missing data directory")
+	}
+}
+
+func TestPoolSizes(t *testing.T) {
+	s := openTestStore(t)
+	if got := s.Writer.Stats().MaxOpenConnections; got != 1 {
+		t.Errorf("writer max open connections = %d, want 1", got)
+	}
+	if got := s.Reader.Stats().MaxOpenConnections; got != readPoolSize {
+		t.Errorf("reader max open connections = %d, want %d", got, readPoolSize)
+	}
+}
+
+// TestPragmasOnEveryConnection holds every reader connection open at once so
+// each one is a distinct connection, then checks the pragmas on each and on
+// the writer.
+func TestPragmasOnEveryConnection(t *testing.T) {
+	ctx := context.Background()
+	s := openTestStore(t)
+
+	conns := []*sql.Conn{}
+	for range readPoolSize {
+		c, err := s.Reader.Conn(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer c.Close()
+		conns = append(conns, c)
+	}
+	w, err := s.Writer.Conn(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer w.Close()
+	conns = append(conns, w)
+
+	for i, c := range conns {
+		var fk, busy int
+		var journal string
+		if err := c.QueryRowContext(ctx, "PRAGMA foreign_keys").Scan(&fk); err != nil {
+			t.Fatal(err)
+		}
+		if err := c.QueryRowContext(ctx, "PRAGMA busy_timeout").Scan(&busy); err != nil {
+			t.Fatal(err)
+		}
+		if err := c.QueryRowContext(ctx, "PRAGMA journal_mode").Scan(&journal); err != nil {
+			t.Fatal(err)
+		}
+		if fk != 1 || busy != 5000 || journal != "wal" {
+			t.Errorf("connection %d: foreign_keys=%d busy_timeout=%d journal_mode=%q, want 1, 5000, wal", i, fk, busy, journal)
+		}
+	}
+}
+
+func TestReaderIsReadOnly(t *testing.T) {
+	s := openTestStore(t)
+	if _, err := s.Reader.Exec("CREATE TABLE t (id INTEGER)"); err == nil {
+		t.Fatal("write through the reader succeeded")
+	}
+	if _, err := s.Writer.Exec("CREATE TABLE t (id INTEGER)"); err != nil {
+		t.Fatalf("write through the writer: %v", err)
+	}
+}
+
+func TestForeignKeysEnforced(t *testing.T) {
+	s := openTestStore(t)
+	if _, err := s.Writer.Exec(`
+		CREATE TABLE parent (id INTEGER PRIMARY KEY);
+		CREATE TABLE child (parent_id INTEGER NOT NULL REFERENCES parent(id));
+	`); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := s.Writer.Exec("INSERT INTO child (parent_id) VALUES (42)"); err == nil {
+		t.Fatal("insert violating a foreign key succeeded")
+	}
+}

internal/store/time.go

@@ -0,0 +1,134 @@
+package store
+
+import (
+	"database/sql/driver"
+	"errors"
+	"fmt"
+	"time"
+)
+
+// timestampLayout is RFC 3339 in UTC with fixed millisecond precision, so
+// stored timestamps sort lexicographically in time order.
+const timestampLayout = "2006-01-02T15:04:05.000Z"
+
+// Timestamp is an instant stored as UTC RFC 3339 TEXT with millisecond
+// precision. Sub-millisecond precision is dropped on write. Use
+// sql.Null[Timestamp] for a nullable column.
+type Timestamp struct {
+	time.Time
+}
+
+// Now returns the current instant as a Timestamp, in UTC at millisecond
+// precision, so it equals its stored form.
+func Now() Timestamp {
+	return Timestamp{time.Now().UTC().Truncate(time.Millisecond)}
+}
+
+// String returns the stored TEXT form.
+func (t Timestamp) String() string {
+	return t.UTC().Format(timestampLayout)
+}
+
+// Value implements driver.Valuer. The zero Timestamp is an error, as is a UTC
+// year outside 0000–9999, which the four-digit stored form cannot represent.
+func (t Timestamp) Value() (driver.Value, error) {
+	if t.IsZero() {
+		return nil, errors.New("store: zero Timestamp")
+	}
+	if y := t.UTC().Year(); y < 0 || y > 9999 {
+		return nil, fmt.Errorf("store: Timestamp year %d outside 0000-9999", y)
+	}
+	return t.String(), nil
+}
+
+// Scan implements sql.Scanner. It accepts only TEXT in the stored form, and
+// rejects the zero instant, which Value refuses to write.
+func (t *Timestamp) Scan(src any) error {
+	s, ok := src.(string)
+	if !ok {
+		return fmt.Errorf("store: scan Timestamp: want TEXT, got %T", src)
+	}
+	parsed, err := time.Parse(timestampLayout, s)
+	if err != nil {
+		return fmt.Errorf("store: scan Timestamp %q: %w", s, err)
+	}
+	if parsed.Format(timestampLayout) != s {
+		return fmt.Errorf("store: scan Timestamp %q: want %s", s, timestampLayout)
+	}
+	if parsed.IsZero() {
+		return fmt.Errorf("store: scan Timestamp %q: zero Timestamp", s)
+	}
+	t.Time = parsed
+	return nil
+}
+
+// localDateLayout is the household-local calendar date form.
+const localDateLayout = "2006-01-02"
+
+// LocalDate is a household-local calendar date with no time or zone, stored
+// as YYYY-MM-DD TEXT. The zero LocalDate is invalid and cannot be stored.
+type LocalDate struct {
+	year  int
+	month time.Month
+	day   int
+}
+
+// ParseLocalDate parses a YYYY-MM-DD date, rejecting any other form and any
+// date that does not exist on the calendar.
+func ParseLocalDate(s string) (LocalDate, error) {
+	t, err := time.Parse(localDateLayout, s)
+	if err != nil {
+		return LocalDate{}, fmt.Errorf("store: invalid date %q: %w", s, err)
+	}
+	if t.Format(localDateLayout) != s {
+		return LocalDate{}, fmt.Errorf("store: invalid date %q: want YYYY-MM-DD", s)
+	}
+	return LocalDate{t.Year(), t.Month(), t.Day()}, nil
+}
+
+// LocalDateOf returns the calendar date of t in t's own location.
+func LocalDateOf(t time.Time) LocalDate {
+	y, m, d := t.Date()
+	return LocalDate{y, m, d}
+}
+
+// Date returns the year, month and day of d.
+func (d LocalDate) Date() (year int, month time.Month, day int) {
+	return d.year, d.month, d.day
+}
+
+// String returns the YYYY-MM-DD form.
+func (d LocalDate) String() string {
+	return fmt.Sprintf("%04d-%02d-%02d", d.year, int(d.month), d.day)
+}
+
+// IsZero reports whether d is the zero LocalDate.
+func (d LocalDate) IsZero() bool {
+	return d == LocalDate{}
+}
+
+// Value implements driver.Valuer. The zero LocalDate is an error, as is a
+// year outside 0000–9999, which the four-digit stored form cannot represent.
+func (d LocalDate) Value() (driver.Value, error) {
+	if d.IsZero() {
+		return nil, errors.New("store: zero LocalDate")
+	}
+	if d.year < 0 || d.year > 9999 {
+		return nil, fmt.Errorf("store: LocalDate year %d outside 0000-9999", d.year)
+	}
+	return d.String(), nil
+}
+
+// Scan implements sql.Scanner. It accepts only YYYY-MM-DD TEXT.
+func (d *LocalDate) Scan(src any) error {
+	s, ok := src.(string)
+	if !ok {
+		return fmt.Errorf("store: scan LocalDate: want TEXT, got %T", src)
+	}
+	parsed, err := ParseLocalDate(s)
+	if err != nil {
+		return fmt.Errorf("store: scan LocalDate: %w", err)
+	}
+	*d = parsed
+	return nil
+}

internal/store/time_test.go

@@ -0,0 +1,151 @@
+package store
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func openTypesTestStore(t *testing.T) *Store {
+	t.Helper()
+	s := openTestStore(t)
+	if _, err := s.Writer.Exec("CREATE TABLE v (val TEXT)"); err != nil {
+		t.Fatal(err)
+	}
+	return s
+}
+
+// roundTrip writes in through the writer, then reads it back into out and
+// returns the stored SQLite type and raw text.
+func roundTrip(t *testing.T, s *Store, in, out any) (typ, raw string) {
+	t.Helper()
+	ctx := context.Background()
+	if _, err := s.Writer.ExecContext(ctx, "DELETE FROM v"); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := s.Writer.ExecContext(ctx, "INSERT INTO v (val) VALUES (?)", in); err != nil {
+		t.Fatal(err)
+	}
+	if err := s.Reader.QueryRowContext(ctx, "SELECT typeof(val), val, val FROM v").Scan(&typ, &raw, out); err != nil {
+		t.Fatal(err)
+	}
+	return typ, raw
+}
+
+func TestTimestampRoundTrip(t *testing.T) {
+	s := openTypesTestStore(t)
+	zone := time.FixedZone("EDT", -4*60*60)
+	in := Timestamp{time.Date(2026, 10, 3, 8, 37, 5, 123456789, zone)}
+
+	var out Timestamp
+	typ, raw := roundTrip(t, s, in, &out)
+	if typ != "text" || raw != "2026-10-03T12:37:05.123Z" {
+		t.Fatalf("stored %s %q, want text %q", typ, raw, "2026-10-03T12:37:05.123Z")
+	}
+	if want := in.Truncate(time.Millisecond); !out.Equal(want) {
+		t.Fatalf("read back %v, want %v", out, want)
+	}
+	if out.Location() != time.UTC {
+		t.Fatalf("read back location %v, want UTC", out.Location())
+	}
+
+	now := Now()
+	roundTrip(t, s, now, &out)
+	if out != now {
+		t.Fatalf("Now() round trip = %#v, want %#v", out, now)
+	}
+}
+
+func TestTimestampRejects(t *testing.T) {
+	if _, err := (Timestamp{}).Value(); err == nil {
+		t.Error("zero Timestamp Value succeeded")
+	}
+	for _, tm := range []time.Time{
+		time.Date(10000, 1, 1, 0, 0, 0, 0, time.UTC),
+		time.Date(-1, 12, 31, 0, 0, 0, 0, time.UTC),
+		time.Date(9999, 12, 31, 23, 0, 0, 0, time.FixedZone("west", -2*3600)),
+	} {
+		if v, err := (Timestamp{tm}).Value(); err == nil {
+			t.Errorf("Timestamp{%v}.Value() = %v, want error", tm, v)
+		}
+	}
+	for _, src := range []any{
+		nil, int64(0), []byte("2026-10-03T12:37:05.123Z"), "2026-10-03T12:37:05Z",
+		"2026-10-03T08:37:05.123-04:00", "2026-10-03T12:37:05,123Z", "garbage",
+		"0001-01-01T00:00:00.000Z",
+	} {
+		var ts Timestamp
+		if err := ts.Scan(src); err == nil {
+			t.Errorf("Scan(%#v) succeeded", src)
+		}
+	}
+}
+
+func TestLocalDateRoundTrip(t *testing.T) {
+	s := openTypesTestStore(t)
+	for _, str := range []string{"2026-10-03", "2028-02-29", "0001-01-01", "9999-12-31"} {
+		in, err := ParseLocalDate(str)
+		if err != nil {
+			t.Fatalf("ParseLocalDate(%q): %v", str, err)
+		}
+		if in.String() != str {
+			t.Fatalf("String() = %q, want %q", in.String(), str)
+		}
+		var out LocalDate
+		typ, raw := roundTrip(t, s, in, &out)
+		if typ != "text" || raw != str {
+			t.Fatalf("stored %s %q, want text %q", typ, raw, str)
+		}
+		if out != in {
+			t.Fatalf("read back %v, want %v", out, in)
+		}
+	}
+}
+
+func TestLocalDateOf(t *testing.T) {
+	auckland, err := time.LoadLocation("Pacific/Auckland")
+	if err != nil {
+		t.Fatal(err)
+	}
+	// 2026-10-03T20:00Z is already 2026-10-04 in Auckland (UTC+13).
+	instant := time.Date(2026, time.October, 3, 20, 0, 0, 0, time.UTC)
+	if got := LocalDateOf(instant).String(); got != "2026-10-03" {
+		t.Errorf("LocalDateOf(UTC) = %s, want 2026-10-03", got)
+	}
+	d := LocalDateOf(instant.In(auckland))
+	if got := d.String(); got != "2026-10-04" {
+		t.Errorf("LocalDateOf(Auckland) = %s, want 2026-10-04", got)
+	}
+	if y, m, day := d.Date(); y != 2026 || m != time.October || day != 4 {
+		t.Errorf("Date() = %d-%d-%d, want 2026-10-4", y, m, day)
+	}
+}
+
+func TestLocalDateRejectsInvalid(t *testing.T) {
+	for _, str := range []string{
+		"", "2026-02-30", "2026-02-29", "2026-13-01", "2026-00-10", "2026-10-00",
+		"2026-10-32", "2026-1-03", "2026-10-3", "26-10-03", "2026/10/03",
+		"2026-10-03T00:00:00Z", " 2026-10-03", "20261003", "not-a-date",
+	} {
+		if d, err := ParseLocalDate(str); err == nil {
+			t.Errorf("ParseLocalDate(%q) = %v, want error", str, d)
+		}
+		var d LocalDate
+		if err := d.Scan(str); err == nil {
+			t.Errorf("Scan(%q) succeeded", str)
+		}
+	}
+	if _, err := (LocalDate{}).Value(); err == nil {
+		t.Error("zero LocalDate Value succeeded")
+	}
+	for _, y := range []int{-1, 10000} {
+		d := LocalDateOf(time.Date(y, time.January, 1, 0, 0, 0, 0, time.UTC))
+		if _, err := d.Value(); err == nil {
+			t.Errorf("LocalDate year %d Value succeeded", y)
+		}
+	}
+	var d LocalDate
+	if err := d.Scan(nil); err == nil {
+		t.Error("Scan(nil) succeeded")
+	}
+}

internal/store/tx.go

@@ -0,0 +1,37 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+)
+
+// WithTx runs fn in a transaction on the writer. It commits when fn returns
+// nil and rolls back when fn returns an error, panics or exits the goroutine.
+// A panic is not recovered: it propagates unchanged after the rollback.
+func (s *Store) WithTx(ctx context.Context, fn func(tx *sql.Tx) error) error {
+	tx, err := s.Writer.BeginTx(ctx, nil)
+	if err != nil {
+		return fmt.Errorf("store: begin transaction: %w", err)
+	}
+	finished := false
+	defer func() {
+		if !finished {
+			_ = tx.Rollback() // fn panicked; the panic carries on regardless
+		}
+	}()
+
+	if err := fn(tx); err != nil {
+		finished = true
+		if rbErr := tx.Rollback(); rbErr != nil {
+			return errors.Join(err, fmt.Errorf("store: roll back transaction: %w", rbErr))
+		}
+		return err
+	}
+	finished = true
+	if err := tx.Commit(); err != nil {
+		return fmt.Errorf("store: commit transaction: %w", err)
+	}
+	return nil
+}

internal/store/tx_test.go

@@ -0,0 +1,84 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"testing"
+)
+
+func openTxTestStore(t *testing.T) *Store {
+	t.Helper()
+	s := openTestStore(t)
+	if _, err := s.Writer.Exec("CREATE TABLE t (id INTEGER PRIMARY KEY)"); err != nil {
+		t.Fatal(err)
+	}
+	return s
+}
+
+func countRows(t *testing.T, s *Store) int {
+	t.Helper()
+	var n int
+	if err := s.Reader.QueryRow("SELECT count(*) FROM t").Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	return n
+}
+
+func insertRow(tx *sql.Tx) error {
+	_, err := tx.Exec("INSERT INTO t (id) VALUES (1)")
+	return err
+}
+
+func TestWithTxCommitsOnNil(t *testing.T) {
+	s := openTxTestStore(t)
+	if err := s.WithTx(context.Background(), insertRow); err != nil {
+		t.Fatal(err)
+	}
+	if n := countRows(t, s); n != 1 {
+		t.Fatalf("rows after commit = %d, want 1", n)
+	}
+}
+
+func TestWithTxRollsBackOnError(t *testing.T) {
+	s := openTxTestStore(t)
+	errBoom := errors.New("boom")
+	err := s.WithTx(context.Background(), func(tx *sql.Tx) error {
+		if err := insertRow(tx); err != nil {
+			t.Fatal(err)
+		}
+		return errBoom
+	})
+	if !errors.Is(err, errBoom) {
+		t.Fatalf("WithTx error = %v, want %v", err, errBoom)
+	}
+	if n := countRows(t, s); n != 0 {
+		t.Fatalf("rows after rollback = %d, want 0", n)
+	}
+}
+
+func TestWithTxRollsBackOnPanic(t *testing.T) {
+	s := openTxTestStore(t)
+	const value = "kaboom"
+	func() {
+		defer func() {
+			if p := recover(); p != value {
+				t.Fatalf("recovered %v, want panic %q to propagate", p, value)
+			}
+		}()
+		_ = s.WithTx(context.Background(), func(tx *sql.Tx) error {
+			if err := insertRow(tx); err != nil {
+				t.Fatal(err)
+			}
+			panic(value)
+		})
+		t.Fatal("WithTx returned instead of panicking")
+	}()
+	if n := countRows(t, s); n != 0 {
+		t.Fatalf("rows after panic = %d, want 0", n)
+	}
+	// The single writer connection must have been released.
+	if err := s.WithTx(context.Background(), insertRow); err != nil {
+		t.Fatalf("WithTx after panic: %v", err)
+	}
+}

migrations/0000_bootstrap.sql

@@ -0,0 +1,4 @@
+-- 0000_bootstrap: immutable no-op bootstrap migration. It lets the migrations
+-- embed compile and proves the runner end to end. Never edit or remove it:
+-- applied versions are recorded by filename and never re-run. The initial v1
+-- schema arrives as a new migration, 0001_init.sql (Feature 02 task 3).

migrations/0001_init.sql

@@ -0,0 +1,333 @@
+-- 0001_init: the initial v1 schema (CTXD CONTEXT.MD data model).
+--
+-- Conventions:
+--   * Row ids are ULIDs stored as TEXT NOT NULL PRIMARY KEY (SQLite would
+--     otherwise accept NULL in a TEXT primary key). Single-row settings tables
+--     use id INTEGER PRIMARY KEY CHECK (id = 1) so a second row is refused.
+--   * Timestamps are UTC RFC 3339 TEXT. Household-local dates (week_start,
+--     plan day) are YYYY-MM-DD TEXT; household-local times are HH:MM TEXT.
+--   * Columns ending in _ct only ever hold secretbox ciphertext.
+--   * Every enum column has a CHECK. Booleans are INTEGER CHECK (x IN (0, 1)).
+--     Days of the week are INTEGER IN (0, 1, 2, 3, 4, 5, 6), Sunday = 0 (Go
+--     time.Weekday); IN rather than BETWEEN so fractional values are refused.
+--   * Foreign keys use the default NO ACTION, so deleting a parent that still
+--     has children is refused. This includes ai_run_id: the 30-day ai_runs
+--     purge must clear those references explicitly before deleting.
+--   * Defaults exist only where CTXD names one (household_settings times and
+--     shopping_items.needed).
+--
+-- Enum value sets not spelled out in CONTEXT.MD, chosen here:
+--   ai_settings.provider, ai_runs.provider: openai_compatible, anthropic, ollama
+--   ai_runs.status: running, ok, error
+--   chat_settings.last_test_status: ok, failed
+--   jobs.status, suggestion_batches.status: pending, running, done, failed
+--   notification_outbox.status: pending, sent, failed
+--   schedule_runs.schedule: suggestions_weekly, plan_draft,
+--     shopping_chat_autosend, day_of_reminder, rotation_check, week_rollover,
+--     ai_runs_purge
+-- jobs.kind and ai_runs.skill are open identifiers that grow with features,
+-- not enums, so they carry no CHECK.
+
+CREATE TABLE household_settings (
+	id                      INTEGER PRIMARY KEY CHECK (id = 1),
+	timezone                TEXT    NOT NULL,
+	dinner_time             TEXT    NOT NULL DEFAULT '17:30',
+	reminder_time           TEXT    NOT NULL DEFAULT '16:30',
+	review_time             TEXT    NOT NULL DEFAULT '09:00',
+	plan_draft_dow          INTEGER NOT NULL DEFAULT 5 CHECK (plan_draft_dow IN (0, 1, 2, 3, 4, 5, 6)),
+	plan_draft_time         TEXT    NOT NULL DEFAULT '09:00',
+	suggestions_dow         INTEGER NOT NULL DEFAULT 0 CHECK (suggestions_dow IN (0, 1, 2, 3, 4, 5, 6)),
+	suggestions_time        TEXT    NOT NULL DEFAULT '08:00',
+	chat_autosend_dow       INTEGER NOT NULL DEFAULT 6 CHECK (chat_autosend_dow IN (0, 1, 2, 3, 4, 5, 6)),
+	chat_autosend_time      TEXT    NOT NULL DEFAULT '08:00',
+	onboarding_completed_at TEXT,
+	updates_seen_at         TEXT,
+	created_at              TEXT    NOT NULL,
+	updated_at              TEXT    NOT NULL
+);
+
+CREATE TABLE ai_runs (
+	id                 TEXT    NOT NULL PRIMARY KEY,
+	skill              TEXT    NOT NULL,
+	skill_version      TEXT    NOT NULL,
+	provider           TEXT    NOT NULL CHECK (provider IN ('openai_compatible', 'anthropic', 'ollama')),
+	model              TEXT    NOT NULL,
+	temperature        REAL    NOT NULL,
+	status             TEXT    NOT NULL CHECK (status IN ('running', 'ok', 'error')),
+	latency_ms         INTEGER,
+	tokens_in          INTEGER,
+	tokens_out         INTEGER,
+	error              TEXT,
+	request_redacted   TEXT    NOT NULL,
+	response_redacted  TEXT,
+	created_at         TEXT    NOT NULL,
+	updated_at         TEXT    NOT NULL
+);
+
+CREATE TABLE recipes (
+	id            TEXT    NOT NULL PRIMARY KEY,
+	source_url    TEXT    NOT NULL UNIQUE,
+	site_name     TEXT,
+	title         TEXT    NOT NULL,
+	total_minutes INTEGER,
+	prep_minutes  INTEGER,
+	cook_minutes  INTEGER,
+	yield         TEXT,
+	raw_jsonld    TEXT    NOT NULL,
+	fetched_at    TEXT    NOT NULL,
+	created_at    TEXT    NOT NULL,
+	updated_at    TEXT    NOT NULL
+);
+
+CREATE TABLE recipe_ingredients (
+	id         TEXT    NOT NULL PRIMARY KEY,
+	recipe_id  TEXT    NOT NULL REFERENCES recipes (id),
+	position   INTEGER NOT NULL,
+	raw_text   TEXT    NOT NULL,
+	name       TEXT,
+	qty        TEXT,
+	unit       TEXT,
+	note       TEXT,
+	created_at TEXT    NOT NULL,
+	updated_at TEXT    NOT NULL
+);
+
+CREATE TABLE recipe_steps (
+	id         TEXT    NOT NULL PRIMARY KEY,
+	recipe_id  TEXT    NOT NULL REFERENCES recipes (id),
+	position   INTEGER NOT NULL,
+	text       TEXT    NOT NULL,
+	created_at TEXT    NOT NULL,
+	updated_at TEXT    NOT NULL
+);
+
+CREATE TABLE photos (
+	id         TEXT    NOT NULL PRIMARY KEY,
+	source_url TEXT    NOT NULL,
+	local_path TEXT    NOT NULL,
+	width      INTEGER NOT NULL,
+	height     INTEGER NOT NULL,
+	sha256     TEXT    NOT NULL,
+	fetched_at TEXT    NOT NULL,
+	created_at TEXT    NOT NULL,
+	updated_at TEXT    NOT NULL
+);
+
+CREATE TABLE dinners (
+	id               TEXT    NOT NULL PRIMARY KEY,
+	name             TEXT    NOT NULL,
+	normalized_name  TEXT    NOT NULL,
+	status           TEXT    NOT NULL CHECK (status IN ('suggested', 'quest_log', 'tried', 'regular', 'archived')),
+	origin           TEXT    NOT NULL CHECK (origin IN ('regular', 'side_quest', 'ingredients', 'quick', 'manual')),
+	method           TEXT    CHECK (method IN ('stovetop', 'oven', 'crockpot', 'grill', 'other')),
+	minutes_total    INTEGER,
+	difficulty       TEXT    CHECK (difficulty IN ('easy', 'medium', 'hard')),
+	cuisine          TEXT,
+	is_favorite      INTEGER NOT NULL CHECK (is_favorite IN (0, 1)),
+	recipe_id        TEXT    REFERENCES recipes (id),
+	photo_id         TEXT    REFERENCES photos (id),
+	grounding_status TEXT    NOT NULL CHECK (grounding_status IN ('pending', 'grounded', 'failed', 'manual')),
+	updated_by       TEXT,
+	created_at       TEXT    NOT NULL,
+	updated_at       TEXT    NOT NULL
+);
+
+CREATE TABLE suggestion_batches (
+	id         TEXT NOT NULL PRIMARY KEY,
+	trigger    TEXT NOT NULL CHECK (trigger IN ('scheduled', 'manual', 'replenish')),
+	status     TEXT NOT NULL CHECK (status IN ('pending', 'running', 'done', 'failed')),
+	ai_run_id  TEXT REFERENCES ai_runs (id),
+	created_at TEXT NOT NULL,
+	updated_at TEXT NOT NULL
+);
+
+CREATE TABLE suggestions (
+	id                TEXT NOT NULL PRIMARY KEY,
+	dinner_id         TEXT NOT NULL REFERENCES dinners (id),
+	batch_id          TEXT NOT NULL REFERENCES suggestion_batches (id),
+	reason            TEXT NOT NULL,
+	cited_regular_ids TEXT NOT NULL, -- JSON array of dinner ids
+	status            TEXT NOT NULL CHECK (status IN ('pending', 'accepted', 'declined')),
+	decided_at        TEXT,
+	created_at        TEXT NOT NULL,
+	updated_at        TEXT NOT NULL
+);
+
+CREATE TABLE week_plans (
+	id                 TEXT NOT NULL PRIMARY KEY,
+	week_start         TEXT NOT NULL UNIQUE,
+	status             TEXT NOT NULL CHECK (status IN ('draft', 'synced', 'changed')),
+	ai_note            TEXT,
+	ai_run_id          TEXT REFERENCES ai_runs (id),
+	calendar_synced_at TEXT,
+	created_at         TEXT NOT NULL,
+	updated_at         TEXT NOT NULL
+);
+
+CREATE TABLE plan_days (
+	id                TEXT    NOT NULL PRIMARY KEY,
+	plan_id           TEXT    NOT NULL REFERENCES week_plans (id),
+	date              TEXT    NOT NULL,
+	dinner_id         TEXT    REFERENCES dinners (id),
+	is_new            INTEGER NOT NULL CHECK (is_new IN (0, 1)),
+	calendar_event_id TEXT,
+	created_at        TEXT    NOT NULL,
+	updated_at        TEXT    NOT NULL,
+	UNIQUE (plan_id, date)
+);
+
+CREATE TABLE rotation_reviews (
+	id         TEXT NOT NULL PRIMARY KEY,
+	dinner_id  TEXT NOT NULL REFERENCES dinners (id),
+	plan_date  TEXT NOT NULL,
+	status     TEXT NOT NULL CHECK (status IN ('pending', 'decided')),
+	decision   TEXT CHECK (decision IN ('keep', 'drop', 'not_made')),
+	decided_at TEXT,
+	updated_by TEXT,
+	created_at TEXT NOT NULL,
+	updated_at TEXT NOT NULL,
+	UNIQUE (dinner_id, plan_date)
+);
+
+CREATE TABLE shopping_lists (
+	id              TEXT NOT NULL PRIMARY KEY,
+	week_start      TEXT NOT NULL UNIQUE,
+	plan_id         TEXT NOT NULL REFERENCES week_plans (id),
+	title           TEXT NOT NULL,
+	status          TEXT NOT NULL CHECK (status IN ('current', 'archived')),
+	sent_to_chat_at TEXT,
+	frozen_at       TEXT,
+	created_at      TEXT NOT NULL,
+	updated_at      TEXT NOT NULL
+);
+
+CREATE TABLE shopping_groups (
+	id         TEXT    NOT NULL PRIMARY KEY,
+	list_id    TEXT    NOT NULL REFERENCES shopping_lists (id),
+	dinner_id  TEXT    NOT NULL REFERENCES dinners (id),
+	position   INTEGER NOT NULL,
+	created_at TEXT    NOT NULL,
+	updated_at TEXT    NOT NULL
+);
+
+CREATE TABLE shopping_items (
+	id         TEXT    NOT NULL PRIMARY KEY,
+	group_id   TEXT    NOT NULL REFERENCES shopping_groups (id),
+	name       TEXT    NOT NULL,
+	qty        TEXT,
+	needed     INTEGER NOT NULL DEFAULT 1 CHECK (needed IN (0, 1)),
+	position   INTEGER NOT NULL,
+	created_at TEXT    NOT NULL,
+	updated_at TEXT    NOT NULL
+);
+
+CREATE TABLE ai_settings (
+	id              INTEGER PRIMARY KEY CHECK (id = 1),
+	provider        TEXT    NOT NULL CHECK (provider IN ('openai_compatible', 'anthropic', 'ollama')),
+	base_url        TEXT    NOT NULL,
+	model           TEXT    NOT NULL,
+	temperature     REAL    NOT NULL,
+	system_prompt   TEXT,
+	api_key_ct      BLOB,
+	api_key_last4   TEXT,
+	key_verified_at TEXT,
+	created_at      TEXT    NOT NULL,
+	updated_at      TEXT    NOT NULL
+);
+
+CREATE TABLE recipe_search_settings (
+	id         INTEGER PRIMARY KEY CHECK (id = 1),
+	provider   TEXT    NOT NULL CHECK (provider IN ('searxng', 'brave')),
+	base_url   TEXT,
+	api_key_ct BLOB,
+	created_at TEXT    NOT NULL,
+	updated_at TEXT    NOT NULL
+);
+
+CREATE TABLE integrations_google (
+	id               INTEGER PRIMARY KEY CHECK (id = 1),
+	refresh_token_ct BLOB    NOT NULL,
+	calendar_id      TEXT,
+	calendar_name    TEXT,
+	connected_at     TEXT    NOT NULL,
+	last_sync_error  TEXT,
+	created_at       TEXT    NOT NULL,
+	updated_at       TEXT    NOT NULL
+);
+
+CREATE TABLE chat_settings (
+	id               INTEGER PRIMARY KEY CHECK (id = 1),
+	webhook_url_ct   BLOB    NOT NULL,
+	space_label      TEXT,
+	last_test_at     TEXT,
+	last_test_status TEXT    CHECK (last_test_status IN ('ok', 'failed')),
+	created_at       TEXT    NOT NULL,
+	updated_at       TEXT    NOT NULL
+);
+
+CREATE TABLE notification_prefs (
+	event      TEXT    NOT NULL PRIMARY KEY CHECK (event IN ('plan_ready', 'list_ready', 'day_of_reminder', 'new_suggestions', 'rotation_review')),
+	push       INTEGER NOT NULL CHECK (push IN (0, 1)),
+	chat       INTEGER NOT NULL CHECK (chat IN (0, 1)),
+	created_at TEXT    NOT NULL,
+	updated_at TEXT    NOT NULL
+);
+
+CREATE TABLE push_subscriptions (
+	id              TEXT    NOT NULL PRIMARY KEY,
+	endpoint        TEXT    NOT NULL UNIQUE,
+	p256dh          TEXT    NOT NULL,
+	auth            TEXT    NOT NULL,
+	user_agent      TEXT,
+	failure_count   INTEGER NOT NULL,
+	last_success_at TEXT,
+	created_at      TEXT    NOT NULL,
+	updated_at      TEXT    NOT NULL
+);
+
+CREATE TABLE notification_outbox (
+	id              TEXT    NOT NULL PRIMARY KEY,
+	event_key       TEXT    NOT NULL,
+	channel         TEXT    NOT NULL CHECK (channel IN ('push', 'chat')),
+	payload         TEXT    NOT NULL, -- JSON
+	status          TEXT    NOT NULL CHECK (status IN ('pending', 'sent', 'failed')),
+	attempts        INTEGER NOT NULL,
+	next_attempt_at TEXT,
+	last_error      TEXT,
+	created_at      TEXT    NOT NULL,
+	updated_at      TEXT    NOT NULL,
+	UNIQUE (event_key, channel)
+);
+
+CREATE TABLE jobs (
+	id          TEXT NOT NULL PRIMARY KEY,
+	kind        TEXT NOT NULL,
+	status      TEXT NOT NULL CHECK (status IN ('pending', 'running', 'done', 'failed')),
+	payload     TEXT NOT NULL, -- JSON
+	result      TEXT,          -- JSON, written progressively
+	error       TEXT,
+	started_at  TEXT,
+	finished_at TEXT,
+	created_at  TEXT NOT NULL,
+	updated_at  TEXT NOT NULL
+);
+
+CREATE TABLE schedule_runs (
+	id         TEXT NOT NULL PRIMARY KEY,
+	schedule   TEXT NOT NULL CHECK (schedule IN ('suggestions_weekly', 'plan_draft', 'shopping_chat_autosend', 'day_of_reminder', 'rotation_check', 'week_rollover', 'ai_runs_purge')),
+	period_key TEXT NOT NULL,
+	created_at TEXT NOT NULL,
+	UNIQUE (schedule, period_key)
+);
+
+CREATE TABLE sessions (
+	id_hash      TEXT NOT NULL PRIMARY KEY,
+	subject      TEXT NOT NULL,
+	email        TEXT NOT NULL,
+	name         TEXT NOT NULL,
+	groups       TEXT NOT NULL, -- JSON array
+	csrf_token   TEXT NOT NULL,
+	created_at   TEXT NOT NULL,
+	last_seen_at TEXT NOT NULL,
+	expires_at   TEXT NOT NULL
+);

migrations/0002_household_settings_updated_by.sql

@@ -0,0 +1,4 @@
+-- 0002_household_settings_updated_by: record who last changed the household
+-- settings, as dinners and suggestion_batches already do. NULL until the
+-- first change made by a signed-in member.
+ALTER TABLE household_settings ADD COLUMN updated_by TEXT;

migrations/0003_jobs_status.sql

@@ -0,0 +1,32 @@
+-- 0003_jobs_status: jobs.status becomes queued, running, succeeded, failed,
+-- the states the job runner (internal/jobs) reports. SQLite cannot change a
+-- CHECK in place, so the table is rebuilt: create the new table, copy every
+-- row, drop the old one and rename. Nothing references jobs and it has no
+-- indexes or triggers, so the rebuild touches no other schema object. Rows
+-- written under the 0001 values are mapped (pending -> queued,
+-- done -> succeeded) so the copy cannot fail on an existing database.
+
+CREATE TABLE jobs_new (
+	id          TEXT NOT NULL PRIMARY KEY,
+	kind        TEXT NOT NULL,
+	status      TEXT NOT NULL CHECK (status IN ('queued', 'running', 'succeeded', 'failed')),
+	payload     TEXT NOT NULL, -- JSON
+	result      TEXT,          -- JSON, written progressively
+	error       TEXT,
+	started_at  TEXT,
+	finished_at TEXT,
+	created_at  TEXT NOT NULL,
+	updated_at  TEXT NOT NULL
+);
+
+INSERT INTO jobs_new (id, kind, status, payload, result, error, started_at, finished_at, created_at, updated_at)
+SELECT
+	id,
+	kind,
+	CASE status WHEN 'pending' THEN 'queued' WHEN 'done' THEN 'succeeded' ELSE status END,
+	payload, result, error, started_at, finished_at, created_at, updated_at
+FROM jobs;
+
+DROP TABLE jobs;
+
+ALTER TABLE jobs_new RENAME TO jobs;

migrations/embed.go

@@ -0,0 +1,10 @@
+// Package migrations embeds the SQL schema migrations applied at boot by
+// internal/store. Files are named NNNN_slug.sql and applied in filename order.
+package migrations
+
+import "embed"
+
+// FS holds every *.sql migration in this directory.
+//
+//go:embed *.sql
+var FS embed.FS

migrations/queries/dinners.sql

@@ -0,0 +1,57 @@
+-- name: CreateDinner :one
+INSERT INTO dinners (
+	id, name, normalized_name, status, origin, method, minutes_total,
+	difficulty, cuisine, is_favorite, recipe_id, photo_id, grounding_status,
+	updated_by, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?, ?,
+	?, ?, ?, ?, ?, ?,
+	?, ?, ?
+)
+RETURNING *;
+
+-- name: GetDinner :one
+SELECT * FROM dinners
+WHERE id = ?;
+
+-- name: ListDinnersByStatus :many
+SELECT * FROM dinners
+WHERE status = ?
+ORDER BY normalized_name, id;
+
+-- name: UpdateDinner :one
+-- An unknown id returns sql.ErrNoRows.
+UPDATE dinners
+SET name = ?,
+	normalized_name = ?,
+	status = ?,
+	origin = ?,
+	method = ?,
+	minutes_total = ?,
+	difficulty = ?,
+	cuisine = ?,
+	recipe_id = ?,
+	photo_id = ?,
+	grounding_status = ?,
+	updated_by = ?,
+	updated_at = ?
+WHERE id = ?
+RETURNING *;
+
+-- name: ArchiveDinner :one
+-- An unknown id returns sql.ErrNoRows.
+UPDATE dinners
+SET status = 'archived',
+	updated_by = ?,
+	updated_at = ?
+WHERE id = ?
+RETURNING *;
+
+-- name: SetDinnerFavorite :one
+-- An unknown id returns sql.ErrNoRows.
+UPDATE dinners
+SET is_favorite = ?,
+	updated_by = ?,
+	updated_at = ?
+WHERE id = ?
+RETURNING *;

migrations/queries/jobs.sql

@@ -0,0 +1,37 @@
+-- name: CreateJob :exec
+INSERT INTO jobs (id, kind, status, payload, created_at, updated_at)
+VALUES (?, ?, 'queued', ?, ?, ?);
+
+-- name: ClaimNextJob :one
+-- Marks the oldest queued job running and returns it. Returns sql.ErrNoRows
+-- when no job is queued.
+UPDATE jobs
+SET status = 'running', started_at = sqlc.arg(now), updated_at = sqlc.arg(now)
+WHERE id = (SELECT id FROM jobs WHERE status = 'queued' ORDER BY id LIMIT 1)
+RETURNING *;
+
+-- name: PublishJobResult :execrows
+-- Stores a partial result of a running job.
+UPDATE jobs
+SET result = ?, updated_at = ?
+WHERE id = ? AND status = 'running';
+
+-- name: SucceedJob :execrows
+UPDATE jobs
+SET status = 'succeeded', result = sqlc.arg(result), finished_at = sqlc.arg(now), updated_at = sqlc.arg(now)
+WHERE id = sqlc.arg(id) AND status = 'running';
+
+-- name: FailJob :execrows
+UPDATE jobs
+SET status = 'failed', error = sqlc.arg(error), finished_at = sqlc.arg(now), updated_at = sqlc.arg(now)
+WHERE id = sqlc.arg(id) AND status = 'running';
+
+-- name: FailRunningJobs :execrows
+-- Fails every job left running, at boot before any worker starts.
+UPDATE jobs
+SET status = 'failed', error = sqlc.arg(error), finished_at = sqlc.arg(now), updated_at = sqlc.arg(now)
+WHERE status = 'running';
+
+-- name: GetJob :one
+SELECT * FROM jobs
+WHERE id = ?;

migrations/queries/photos.sql

@@ -0,0 +1,17 @@
+-- name: CreatePhoto :one
+INSERT INTO photos (
+	id, source_url, local_path, width, height, sha256, fetched_at,
+	created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?, ?,
+	?, ?
+)
+RETURNING *;
+
+-- name: GetPhotoBySHA256 :one
+-- Finds stored image bytes by content hash. The schema does not make sha256
+-- unique, so the earliest-created (lowest id) match is returned.
+SELECT * FROM photos
+WHERE sha256 = ?
+ORDER BY id
+LIMIT 1;

migrations/queries/recipes.sql

@@ -0,0 +1,65 @@
+-- name: UpsertRecipe :one
+-- A recipe is keyed by source_url: re-fetching the same URL updates the
+-- existing row and keeps its id and created_at, which the returned row
+-- carries. Replace its ingredients and steps in the same transaction with
+-- DeleteRecipeIngredients/DeleteRecipeSteps then the Create queries.
+INSERT INTO recipes (
+	id, source_url, site_name, title, total_minutes, prep_minutes,
+	cook_minutes, yield, raw_jsonld, fetched_at, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?,
+	?, ?, ?, ?, ?, ?
+)
+ON CONFLICT (source_url) DO UPDATE SET
+	site_name = excluded.site_name,
+	title = excluded.title,
+	total_minutes = excluded.total_minutes,
+	prep_minutes = excluded.prep_minutes,
+	cook_minutes = excluded.cook_minutes,
+	yield = excluded.yield,
+	raw_jsonld = excluded.raw_jsonld,
+	fetched_at = excluded.fetched_at,
+	updated_at = excluded.updated_at
+RETURNING *;
+
+-- name: GetRecipe :one
+SELECT * FROM recipes
+WHERE id = ?;
+
+-- name: GetRecipeBySourceURL :one
+SELECT * FROM recipes
+WHERE source_url = ?;
+
+-- name: CreateRecipeIngredient :exec
+INSERT INTO recipe_ingredients (
+	id, recipe_id, position, raw_text, name, qty, unit, note,
+	created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?, ?, ?,
+	?, ?
+);
+
+-- name: ListRecipeIngredients :many
+SELECT * FROM recipe_ingredients
+WHERE recipe_id = ?
+ORDER BY position, id;
+
+-- name: DeleteRecipeIngredients :exec
+DELETE FROM recipe_ingredients
+WHERE recipe_id = ?;
+
+-- name: CreateRecipeStep :exec
+INSERT INTO recipe_steps (
+	id, recipe_id, position, text, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?
+);
+
+-- name: ListRecipeSteps :many
+SELECT * FROM recipe_steps
+WHERE recipe_id = ?
+ORDER BY position, id;
+
+-- name: DeleteRecipeSteps :exec
+DELETE FROM recipe_steps
+WHERE recipe_id = ?;

migrations/queries/settings.sql

@@ -0,0 +1,129 @@
+-- name: GetHouseholdSettings :one
+-- Returns sql.ErrNoRows until the row exists.
+SELECT * FROM household_settings
+WHERE id = 1;
+
+-- name: UpsertHouseholdSettings :one
+-- Creates the single row (id 1) or replaces every column except id and
+-- created_at.
+INSERT INTO household_settings (
+	id, timezone, dinner_time, reminder_time, review_time, plan_draft_dow,
+	plan_draft_time, suggestions_dow, suggestions_time, chat_autosend_dow,
+	chat_autosend_time, onboarding_completed_at, updates_seen_at,
+	updated_by, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?, ?,
+	?, ?, ?, ?,
+	?, ?, ?,
+	?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	timezone = excluded.timezone,
+	dinner_time = excluded.dinner_time,
+	reminder_time = excluded.reminder_time,
+	review_time = excluded.review_time,
+	plan_draft_dow = excluded.plan_draft_dow,
+	plan_draft_time = excluded.plan_draft_time,
+	suggestions_dow = excluded.suggestions_dow,
+	suggestions_time = excluded.suggestions_time,
+	chat_autosend_dow = excluded.chat_autosend_dow,
+	chat_autosend_time = excluded.chat_autosend_time,
+	onboarding_completed_at = excluded.onboarding_completed_at,
+	updates_seen_at = excluded.updates_seen_at,
+	updated_by = excluded.updated_by,
+	updated_at = excluded.updated_at
+RETURNING *;
+
+-- name: GetAISettings :one
+-- Returns sql.ErrNoRows until the row exists.
+SELECT * FROM ai_settings
+WHERE id = 1;
+
+-- name: UpsertAISettings :one
+-- Creates the single row (id 1) or replaces every column except id and
+-- created_at.
+INSERT INTO ai_settings (
+	id, provider, base_url, model, temperature, system_prompt, api_key_ct,
+	api_key_last4, key_verified_at, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?, ?, ?,
+	?, ?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	provider = excluded.provider,
+	base_url = excluded.base_url,
+	model = excluded.model,
+	temperature = excluded.temperature,
+	system_prompt = excluded.system_prompt,
+	api_key_ct = excluded.api_key_ct,
+	api_key_last4 = excluded.api_key_last4,
+	key_verified_at = excluded.key_verified_at,
+	updated_at = excluded.updated_at
+RETURNING *;
+
+-- name: GetRecipeSearchSettings :one
+-- Returns sql.ErrNoRows until the row exists.
+SELECT * FROM recipe_search_settings
+WHERE id = 1;
+
+-- name: UpsertRecipeSearchSettings :one
+-- Creates the single row (id 1) or replaces every column except id and
+-- created_at.
+INSERT INTO recipe_search_settings (
+	id, provider, base_url, api_key_ct, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	provider = excluded.provider,
+	base_url = excluded.base_url,
+	api_key_ct = excluded.api_key_ct,
+	updated_at = excluded.updated_at
+RETURNING *;
+
+-- name: GetIntegrationsGoogle :one
+-- Returns sql.ErrNoRows until the row exists.
+SELECT * FROM integrations_google
+WHERE id = 1;
+
+-- name: UpsertIntegrationsGoogle :one
+-- Creates the single row (id 1) or replaces every column except id and
+-- created_at.
+INSERT INTO integrations_google (
+	id, refresh_token_ct, calendar_id, calendar_name, connected_at,
+	last_sync_error, created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?,
+	?, ?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	refresh_token_ct = excluded.refresh_token_ct,
+	calendar_id = excluded.calendar_id,
+	calendar_name = excluded.calendar_name,
+	connected_at = excluded.connected_at,
+	last_sync_error = excluded.last_sync_error,
+	updated_at = excluded.updated_at
+RETURNING *;
+
+-- name: GetChatSettings :one
+-- Returns sql.ErrNoRows until the row exists.
+SELECT * FROM chat_settings
+WHERE id = 1;
+
+-- name: UpsertChatSettings :one
+-- Creates the single row (id 1) or replaces every column except id and
+-- created_at.
+INSERT INTO chat_settings (
+	id, webhook_url_ct, space_label, last_test_at, last_test_status,
+	created_at, updated_at
+) VALUES (
+	1, ?, ?, ?, ?,
+	?, ?
+)
+ON CONFLICT (id) DO UPDATE SET
+	webhook_url_ct = excluded.webhook_url_ct,
+	space_label = excluded.space_label,
+	last_test_at = excluded.last_test_at,
+	last_test_status = excluded.last_test_status,
+	updated_at = excluded.updated_at
+RETURNING *;

sqlc.yaml

@@ -0,0 +1,15 @@
+# sqlc code generation. Regenerate with `make sqlc` (pinned sqlc version in the
+# Makefile); `make sqlc-check` fails when internal/db is stale. sqlc reads only
+# the top-level *.sql files of the schema directory, so migrations/queries/ is
+# not treated as schema.
+version: "2"
+sql:
+  - engine: sqlite
+    schema: migrations
+    queries: migrations/queries
+    gen:
+      go:
+        package: db
+        out: internal/db
+        sql_package: database/sql
+        emit_interface: true