fix: serialize concurrent migration runners with a per-connection lock

NestQuestDatabase rejects a second transaction while one is active, so
two concurrent apply_migrations callers on one connection crashed with
RuntimeError instead of queueing. apply_migrations now holds a
per-(connection, loop) asyncio lock across the whole decide-and-apply
span; the queued runner re-reads the stamped version and applies
nothing. Deterministic concurrent-runner regression test added.

custom_components/nestquest/dao_children.py

@@ -1,289 +0,0 @@
-"""Typed DAO layer for the children and admin_users tables.
-
-All SQL for ``children`` and ``admin_users`` lives in this module per
-the feature guardrail: callers get typed dataclasses back and never see
-raw rows or SQL.  Every method is async and runs through
-:class:`~.db.NestQuestDatabase`, so each statement executes on the HA
-executor and the event loop never blocks.
-
-Error contract: violations surface as the underlying
-:class:`sqlite3.IntegrityError` (duplicate, foreign-key, or CHECK
-failure) from the execute call; the DAO adds no wrapping exception
-type.  A get that matches nothing returns ``None``; a mutation that
-matches nothing is reported by :class:`~.db.ExecutionResult.rowcount`,
-which each method returns where the caller may need it (reorder, and
-the admin remove/set paths).
-"""
-from __future__ import annotations
-
-import asyncio
-from dataclasses import dataclass
-
-from .db import NestQuestDatabase
-
-
-@dataclass(frozen=True)
-class ChildRecord:
-    """One row of ``children``."""
-
-    id: int
-    display_name: str
-    colour: str | None
-    avatar_ref: str | None
-    sort_order: int
-    is_active: bool
-    created_at: str
-
-
-@dataclass(frozen=True)
-class AdminUserRecord:
-    """One row of ``admin_users``."""
-
-    ha_user_id: str
-    added_at: str
-
-
-def _child_from_row(row: tuple) -> ChildRecord:
-    """Build a :class:`ChildRecord` from a SELECT row."""
-    return ChildRecord(
-        id=row[0],
-        display_name=row[1],
-        colour=row[2],
-        avatar_ref=row[3],
-        sort_order=row[4],
-        is_active=bool(row[5]),
-        created_at=row[6],
-    )
-
-
-_CHILD_COLUMNS = (
-    "id, display_name, colour, avatar_ref, sort_order, is_active, created_at"
-)
-
-
-#: One asyncio.Lock per (connection wrapper, running loop), shared by
-#: every ChildrenDao instance over the same database: the wrapper
-#: rejects a second concurrent transaction with RuntimeError, so ALL
-#: transactional DAO operations on one connection must queue here, not
-#: per-instance.  Keyed like the migration runner's lock; entries are
-#: never evicted (a config entry holds one wrapper per process).
-_CONNECTION_LOCKS: dict[tuple[int, int], asyncio.Lock] = {}
-
-
-def _connection_lock(database) -> asyncio.Lock:
-    """Return the shared transaction-serializing lock for ``database``."""
-    loop = asyncio.get_running_loop()
-    key = (id(database), id(loop))
-    lock = _CONNECTION_LOCKS.get(key)
-    if lock is None:
-        lock = asyncio.Lock()
-        _CONNECTION_LOCKS[key] = lock
-    return lock
-
-
-class ChildrenDao:
-    """Typed async data access for the ``children`` table.
-
-    Deletion is deliberately absent: children are deactivated, never
-    deleted, because completion history references them (feature
-    guardrail).
-    """
-
-    def __init__(self, database) -> None:
-        self._database = database
-
-    async def create(
-        self,
-        display_name: str,
-        created_at: str,
-        *,
-        colour: str | None = None,
-        avatar_ref: str | None = None,
-        sort_order: int = 0,
-        is_active: bool = True,
-    ) -> ChildRecord:
-        """Insert one child and return the record as stored."""
-        result = await self._database.execute(
-            "INSERT INTO children (display_name, colour, avatar_ref, "
-            "sort_order, is_active, created_at) VALUES (?, ?, ?, ?, ?, ?)",
-            (
-                display_name,
-                colour,
-                avatar_ref,
-                sort_order,
-                int(is_active),
-                created_at,
-            ),
-        )
-        child = await self.get(result.lastrowid)
-        assert child is not None
-        return child
-
-    async def get(self, child_id: int) -> ChildRecord | None:
-        """Return the child with ``child_id``, or None."""
-        row = await self._database.fetch_one(
-            f"SELECT {_CHILD_COLUMNS} FROM children WHERE id = ?",
-            (child_id,),
-        )
-        return _child_from_row(row) if row is not None else None
-
-    async def list_active(self) -> list[ChildRecord]:
-        """Return active children ordered by sort_order, then id."""
-        rows = await self._database.fetch_all(
-            f"SELECT {_CHILD_COLUMNS} FROM children WHERE is_active = 1 "
-            "ORDER BY sort_order, id"
-        )
-        return [_child_from_row(row) for row in rows]
-
-    async def list_all(self) -> list[ChildRecord]:
-        """Return all children ordered by sort_order, then id."""
-        rows = await self._database.fetch_all(
-            f"SELECT {_CHILD_COLUMNS} FROM children "
-            "ORDER BY sort_order, id"
-        )
-        return [record for record in map(_child_from_row, rows)]
-
-    async def update(
-        self,
-        child_id: int,
-        *,
-        display_name: str | None = None,
-        colour: str | None = None,
-        avatar_ref: str | None = None,
-        sort_order: int | None = None,
-    ) -> int:
-        """Update the given fields; returns rows updated (0 if absent).
-
-        Only non-None arguments are written, so a caller cannot
-        accidentally blank a column by omitting it.
-        """
-        assignments: list[str] = []
-        parameters: list[object] = []
-        if display_name is not None:
-            assignments.append("display_name = ?")
-            parameters.append(display_name)
-        if colour is not None:
-            assignments.append("colour = ?")
-            parameters.append(colour)
-        if avatar_ref is not None:
-            assignments.append("avatar_ref = ?")
-            parameters.append(avatar_ref)
-        if sort_order is not None:
-            assignments.append("sort_order = ?")
-            parameters.append(sort_order)
-        if not assignments:
-            return 0
-        parameters.append(child_id)
-        result = await self._database.execute(
-            f"UPDATE children SET {', '.join(assignments)} WHERE id = ?",
-            tuple(parameters),
-        )
-        return result.rowcount
-
-    async def set_active(self, child_id: int, is_active: bool) -> int:
-        """Set the child's active flag; returns rows updated (0 if absent)."""
-        result = await self._database.execute(
-            "UPDATE children SET is_active = ? WHERE id = ?",
-            (int(is_active), child_id),
-        )
-        return result.rowcount
-
-    async def reorder(self, ordered_ids: list[int]) -> None:
-        """Persist a new sort order: ``ordered_ids[i]`` gets sort_order i.
-
-        Runs inside one transaction; positions are staged at offset
-        -len (all negative, so any permutation of the same ids never
-        collides mid-reorder under the wrapper's single-connection
-        serialization), then finalized 0..n-1.  Duplicate ids are
-        rejected up front: they cannot all hold distinct positions, and
-        silently assigning the last occurrence's index would hide a
-        caller bug.
-
-        Concurrent reorder() calls on one connection are serialized by
-        a connection-scoped asyncio lock (shared across every ChildrenDao
-        over the same wrapper, however many instances): the wrapper's
-        transaction() rejects a second concurrent transaction with
-        RuntimeError, so racing callers would crash instead of
-        queueing.  The lock makes the second call wait, then run
-        against the first call's final state.
-        """
-        if not ordered_ids:
-            return
-        if len(set(ordered_ids)) != len(ordered_ids):
-            raise ValueError(
-                "reorder() received duplicate child ids; every id must "
-                "appear at most once"
-            )
-        async with _connection_lock(self._database):
-            async with self._database.transaction():
-                offset = len(ordered_ids)
-                await self._database.execute_many(
-                    "UPDATE children SET sort_order = ? WHERE id = ?",
-                    [
-                        (-(offset + index), child_id)
-                        for index, child_id in enumerate(ordered_ids)
-                    ],
-                )
-                await self._database.execute_many(
-                    "UPDATE children SET sort_order = ? WHERE id = ?",
-                    [
-                        (index, child_id)
-                        for index, child_id in enumerate(ordered_ids)
-                    ],
-                )
-
-
-class AdminUsersDao:
-    """Typed async access to the ``admin_users`` allowlist.
-
-    The allowlist stores HA user IDs, never usernames (feature
-    guardrail); an empty allowlist means no admin, enforced by callers
-    resolving through :meth:`exists`.
-    """
-
-    def __init__(self, database) -> None:
-        self._database = database
-
-    async def add(self, ha_user_id: str, added_at: str) -> bool:
-        """Add a user to the allowlist; True if inserted, False if present.
-
-        Idempotent under concurrency: a single INSERT ... ON CONFLICT DO
-        NOTHING decides and inserts in one statement (the wrapper
-        serializes statements, not check-then-insert sequences, so a
-        SELECT/INSERT pair would let two concurrent adds both see no
-        row and the second one raise IntegrityError).  rowcount reports
-        whether the insert actually happened.
-        """
-        result = await self._database.execute(
-            "INSERT INTO admin_users (ha_user_id, added_at) VALUES (?, ?) "
-            "ON CONFLICT (ha_user_id) DO NOTHING",
-            (ha_user_id, added_at),
-        )
-        return result.rowcount > 0
-
-    async def remove(self, ha_user_id: str) -> bool:
-        """Remove a user from the allowlist; True if a row was removed."""
-        result = await self._database.execute(
-            "DELETE FROM admin_users WHERE ha_user_id = ?",
-            (ha_user_id,),
-        )
-        return result.rowcount > 0
-
-    async def list(self) -> list[AdminUserRecord]:
-        """Return every allowlisted user, oldest first."""
-        rows = await self._database.fetch_all(
-            "SELECT ha_user_id, added_at FROM admin_users "
-            "ORDER BY added_at, ha_user_id"
-        )
-        return [
-            AdminUserRecord(ha_user_id=row[0], added_at=row[1])
-            for row in rows
-        ]
-
-    async def exists(self, ha_user_id: str) -> bool:
-        """Return True if ``ha_user_id`` is allowlisted."""
-        row = await self._database.fetch_one(
-            "SELECT 1 FROM admin_users WHERE ha_user_id = ?",
-            (ha_user_id,),
-        )
-        return row is not None

custom_components/nestquest/dao_rules.py

@@ -1,465 +0,0 @@
-"""Typed DAO layer for the schedule_rules and task_definitions tables.
-
-All SQL for ``schedule_rules`` and ``task_definitions`` lives in this
-module per the feature guardrails: callers get typed dataclasses back
-and never see raw rows or SQL.  Every method is async and runs through
-:class:`~.db.NestQuestDatabase`, so each statement executes on the HA
-executor and the event loop never blocks.
-
-Guardrail mapping:
-
-- ``schedule_rules`` deletion is delete-if-unreferenced: a rule still
-  referenced by any task definition is rejected (the done-condition),
-  not cascaded.
-- ``task_definitions`` has no delete path at all: definitions are
-  deactivated, never hard-deleted, and history must survive.
-- ``set_assignee`` changes future instances only — the DAO writes the
-  definition row and nothing else; reassignment never rewrites
-  existing instances or completion history (Feature 06 guardrail).
-- Validation of rule well-formedness and child activeness lives partly
-  in the schema CHECKs (rule-type coherence) and partly in
-  :meth:`TaskDefinitionsDao.create` (active child, rule existence);
-  no permission checks here, that is the Feature 09 gate's job.
-
-Concurrency: ``delete_rule_if_unreferenced`` performs its reference
-check and DELETE inside one transaction under the connection-scoped
-lock shared with :mod:`.dao_children`, so a definition referencing the
-rule cannot appear between check and delete on this connection.
-"""
-from __future__ import annotations
-
-import datetime
-from dataclasses import dataclass
-
-from .dao_children import _connection_lock
-from .db import NestQuestDatabase
-
-#: Sentinel distinguishing "argument omitted" from "explicit SQL NULL"
-#: in update methods: passing ``None`` must mean clearing a nullable
-#: column, not skipping it.
-_UNSET = object()
-
-#: Date-shape policy: schedule-rule dates are ISO YYYY-MM-DD.  The
-#: schema's lexical end>=start CHECK cannot prove a value is a real
-#: calendar date, so the DAO validates the shape it accepts.
-_DATE_FORMAT = "%Y-%m-%d"
-
-
-def _validate_date(value: str, field: str) -> None:
-    """Raise ValueError unless ``value`` is a YYYY-MM-DD calendar date.
-
-    ``datetime.date.fromisoformat`` accepts ISO dates but is lenient on
-    some builds (e.g. '2026-9-4'); strptime with an exact format is
-    strict, and strptime round-trips the parsed value to reject zero
-    padding ('2026-9-4' parses but its isoformat differs).
-    """
-    try:
-        parsed = datetime.datetime.strptime(value, _DATE_FORMAT).date()
-    except (TypeError, ValueError):
-        raise ValueError(
-            f"{field} must be an ISO date (YYYY-MM-DD), got {value!r}"
-        ) from None
-    if parsed.isoformat() != value:
-        raise ValueError(
-            f"{field} must be a strict YYYY-MM-DD date, got {value!r}"
-        )
-
-
-@dataclass(frozen=True)
-class ScheduleRuleRecord:
-    """One row of ``schedule_rules``."""
-
-    id: int
-    rule_type: str
-    interval: int
-    weekday_set: str | None
-    day_of_month: int | None
-    nth_weekday: int | None
-    month: int | None
-    start_date: str
-    end_date: str | None
-
-
-@dataclass(frozen=True)
-class TaskDefinitionRecord:
-    """One row of ``task_definitions``."""
-
-    id: int
-    title: str
-    description: str | None
-    icon: str | None
-    child_id: int
-    schedule_rule_id: int
-    due_time: str | None
-    is_active: bool
-    created_at: str
-
-
-_RULE_COLUMNS = (
-    "id, rule_type, interval, weekday_set, day_of_month, nth_weekday, "
-    "month, start_date, end_date"
-)
-_DEFINITION_COLUMNS = (
-    "id, title, description, icon, child_id, schedule_rule_id, due_time, "
-    "is_active, created_at"
-)
-
-
-def _rule_from_row(row: tuple) -> ScheduleRuleRecord:
-    return ScheduleRuleRecord(
-        id=row[0],
-        rule_type=row[1],
-        interval=row[2],
-        weekday_set=row[3],
-        day_of_month=row[4],
-        nth_weekday=row[5],
-        month=row[6],
-        start_date=row[7],
-        end_date=row[8],
-    )
-
-
-def _definition_from_row(row: tuple) -> TaskDefinitionRecord:
-    return TaskDefinitionRecord(
-        id=row[0],
-        title=row[1],
-        description=row[2],
-        icon=row[3],
-        child_id=row[4],
-        schedule_rule_id=row[5],
-        due_time=row[6],
-        is_active=bool(row[7]),
-        created_at=row[8],
-    )
-
-
-class ScheduleRulesDao:
-    """Typed async access to the ``schedule_rules`` table."""
-
-    def __init__(self, database: NestQuestDatabase) -> None:
-        self._database = database
-
-    async def create(
-        self,
-        rule_type: str,
-        start_date: str,
-        *,
-        interval: int = 1,
-        weekday_set: str | None = None,
-        day_of_month: int | None = None,
-        nth_weekday: int | None = None,
-        month: int | None = None,
-        end_date: str | None = None,
-    ) -> ScheduleRuleRecord:
-        """Insert one rule and return the record as stored.
-
-        Rule-type coherence (a weekly rule needs ``weekday_set``, a
-        yearly rule needs ``month``, etc.) is enforced by the schema
-        CHECKs and surfaces as :class:`sqlite3.IntegrityError`.  Date
-        shape (strict YYYY-MM-DD) is validated here because the
-        schema's lexical end>=start CHECK cannot prove a real calendar
-        date.
-        """
-        _validate_date(start_date, "start_date")
-        if end_date is not None:
-            _validate_date(end_date, "end_date")
-        result = await self._database.execute(
-            "INSERT INTO schedule_rules (rule_type, interval, weekday_set, "
-            "day_of_month, nth_weekday, month, start_date, end_date) "
-            "VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
-            (
-                rule_type,
-                interval,
-                weekday_set,
-                day_of_month,
-                nth_weekday,
-                month,
-                start_date,
-                end_date,
-            ),
-        )
-        rule = await self.get(result.lastrowid)
-        assert rule is not None
-        return rule
-
-    async def get(self, rule_id: int) -> ScheduleRuleRecord | None:
-        """Return the rule with ``rule_id``, or None."""
-        row = await self._database.fetch_one(
-            f"SELECT {_RULE_COLUMNS} FROM schedule_rules WHERE id = ?",
-            (rule_id,),
-        )
-        return _rule_from_row(row) if row is not None else None
-
-    async def update(
-        self,
-        rule_id: int,
-        *,
-        rule_type: str | None | object = _UNSET,
-        interval: int | None | object = _UNSET,
-        weekday_set: str | None | object = _UNSET,
-        day_of_month: int | None | object = _UNSET,
-        nth_weekday: int | None | object = _UNSET,
-        month: int | None | object = _UNSET,
-        start_date: str | None | object = _UNSET,
-        end_date: str | None | object = _UNSET,
-    ) -> int:
-        """Update the given fields; returns rows updated (0 if absent).
-
-        Arguments default to the module sentinel ``_UNSET`` meaning
-        "leave this column alone"; passing ``None`` explicitly writes
-        SQL NULL, so callers can reopen an ended rule (``end_date``
-        back to NULL) or clear nullable shape fields.  Passing
-        ``None``/a new value for a date field validates its shape.
-        Editing a rule that a definition references changes future
-        materializations only — this method touches no instances
-        (Feature 06/07 separation).
-        """
-        date_args = (
-            ("start_date", start_date),
-            ("end_date", end_date),
-        )
-        for field, value in date_args:
-            if value is not _UNSET and value is not None:
-                _validate_date(value, field)
-        assignments: list[str] = []
-        parameters: list[object] = []
-        for column, value in (
-            ("rule_type", rule_type),
-            ("interval", interval),
-            ("weekday_set", weekday_set),
-            ("day_of_month", day_of_month),
-            ("nth_weekday", nth_weekday),
-            ("month", month),
-            ("start_date", start_date),
-            ("end_date", end_date),
-        ):
-            if value is not _UNSET:
-                assignments.append(f"{column} = ?")
-                parameters.append(value)
-        if not assignments:
-            return 0
-        parameters.append(rule_id)
-        result = await self._database.execute(
-            f"UPDATE schedule_rules SET {', '.join(assignments)} "
-            "WHERE id = ?",
-            tuple(parameters),
-        )
-        return result.rowcount
-
-    async def delete_if_unreferenced(self, rule_id: int) -> bool:
-        """Delete the rule only if no definition references it.
-
-        Returns True if the rule was deleted, False if it is still
-        referenced (or does not exist — distinguish via :meth:`get`).
-        The reference check and the DELETE run inside one transaction
-        under the connection lock, so a definition cannot start
-        referencing the rule between the check and the delete.
-        """
-        async with _connection_lock(self._database):
-            async with self._database.transaction():
-                row = await self._database.fetch_one(
-                    "SELECT 1 FROM task_definitions "
-                    "WHERE schedule_rule_id = ? LIMIT 1",
-                    (rule_id,),
-                )
-                if row is not None:
-                    return False
-                result = await self._database.execute(
-                    "DELETE FROM schedule_rules WHERE id = ?",
-                    (rule_id,),
-                )
-                return result.rowcount > 0
-
-
-class TaskDefinitionsDao:
-    """Typed async access to the ``task_definitions`` table.
-
-    No delete method exists: definitions are deactivated via
-    :meth:`set_active`, never hard-deleted, so completion history keeps
-    its references (feature guardrail).
-    """
-
-    def __init__(self, database: NestQuestDatabase) -> None:
-        self._database = database
-
-    async def create(
-        self,
-        title: str,
-        child_id: int,
-        schedule_rule_id: int,
-        created_at: str,
-        *,
-        description: str | None = None,
-        icon: str | None = None,
-        due_time: str | None = None,
-        is_active: bool = True,
-    ) -> TaskDefinitionRecord:
-        """Insert one definition and return the record as stored.
-
-        Validates the assignment target as part of the same serialized
-        transaction as the insert: the child must exist and be active,
-        and the rule must exist, AT INSERT TIME — a child deactivated
-        or a rule deleted concurrently cannot slip between the checks
-        and the INSERT, which would otherwise create an invalid
-        assignment or surface as a raw FK IntegrityError instead of
-        the documented ValueError.  An INACTIVE child would pass the
-        schema foreign keys, which is why the activeness check lives
-        here.
-        """
-        async with _connection_lock(self._database):
-            async with self._database.transaction():
-                await self._validate_assignable(
-                    child_id, schedule_rule_id
-                )
-                result = await self._database.execute(
-                    "INSERT INTO task_definitions (title, description, "
-                    "icon, child_id, schedule_rule_id, due_time, "
-                    "is_active, created_at) "
-                    "VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
-                    (
-                        title,
-                        description,
-                        icon,
-                        child_id,
-                        schedule_rule_id,
-                        due_time,
-                        int(is_active),
-                        created_at,
-                    ),
-                )
-                definition = await self.get(result.lastrowid)
-        assert definition is not None
-        return definition
-
-    async def _validate_assignable(
-        self, child_id: int, schedule_rule_id: int
-    ) -> None:
-        """Raise ValueError unless child (active) and rule both exist.
-
-        MUST be called inside the connection lock so the verdict cannot
-        go stale before the caller's INSERT commits.
-        """
-        await self._validate_assignable_child(child_id)
-        rule = await self._database.fetch_one(
-            "SELECT 1 FROM schedule_rules WHERE id = ?",
-            (schedule_rule_id,),
-        )
-        if rule is None:
-            raise ValueError(
-                f"schedule rule {schedule_rule_id} does not exist"
-            )
-
-    async def get(self, definition_id: int) -> TaskDefinitionRecord | None:
-        """Return the definition with ``definition_id``, or None."""
-        row = await self._database.fetch_one(
-            f"SELECT {_DEFINITION_COLUMNS} FROM task_definitions "
-            "WHERE id = ?",
-            (definition_id,),
-        )
-        return _definition_from_row(row) if row is not None else None
-
-    async def list_by_child(self, child_id: int) -> list[TaskDefinitionRecord]:
-        """Return all definitions assigned to ``child_id``, newest first."""
-        rows = await self._database.fetch_all(
-            f"SELECT {_DEFINITION_COLUMNS} FROM task_definitions "
-            "WHERE child_id = ? ORDER BY id DESC",
-            (child_id,),
-        )
-        return [_definition_from_row(row) for row in rows]
-
-    async def list_active(self) -> list[TaskDefinitionRecord]:
-        """Return all active definitions, oldest first (stable order)."""
-        rows = await self._database.fetch_all(
-            f"SELECT {_DEFINITION_COLUMNS} FROM task_definitions "
-            "WHERE is_active = 1 ORDER BY id"
-        )
-        return [_definition_from_row(row) for row in rows]
-
-    async def update(
-        self,
-        definition_id: int,
-        *,
-        title: str | None | object = _UNSET,
-        description: str | None | object = _UNSET,
-        icon: str | None | object = _UNSET,
-        due_time: str | None | object = _UNSET,
-    ) -> int:
-        """Update the given fields; returns rows updated (0 if absent).
-
-        Arguments default to the module sentinel ``_UNSET`` meaning
-        "leave this column alone"; passing ``None`` explicitly writes
-        SQL NULL, so callers can remove optional metadata
-        (description, icon, due_time).  Assignment and activation are
-        deliberately NOT settable here: they have their own explicit
-        operations (:meth:`set_assignee`, :meth:`set_active`) so they
-        stay separately loggable and permission-gateable.
-        """
-        assignments: list[str] = []
-        parameters: list[object] = []
-        for column, value in (
-            ("title", title),
-            ("description", description),
-            ("icon", icon),
-            ("due_time", due_time),
-        ):
-            if value is not _UNSET:
-                assignments.append(f"{column} = ?")
-                parameters.append(value)
-        if not assignments:
-            return 0
-        parameters.append(definition_id)
-        result = await self._database.execute(
-            f"UPDATE task_definitions SET {', '.join(assignments)} "
-            "WHERE id = ?",
-            tuple(parameters),
-        )
-        return result.rowcount
-
-    async def set_active(self, definition_id: int, is_active: bool) -> int:
-        """Deactivate/reactivate; returns rows updated (0 if absent).
-
-        Deactivating stops future instance generation but leaves
-        existing instances and completion history untouched.
-        """
-        result = await self._database.execute(
-            "UPDATE task_definitions SET is_active = ? WHERE id = ?",
-            (int(is_active), definition_id),
-        )
-        return result.rowcount
-
-    async def set_assignee(
-        self, definition_id: int, child_id: int
-    ) -> int:
-        """Reassign the definition to ``child_id``; rows updated (0 if absent).
-
-        Validates the new assignee inside the same serialized
-        transaction as the UPDATE (existing and active AT ASSIGNMENT
-        TIME), so a child deactivated concurrently cannot become the
-        assignee.  Changes future instances only: already-generated
-        instances and completion history are never rewritten here.
-        """
-        async with _connection_lock(self._database):
-            async with self._database.transaction():
-                await self._validate_assignable_child(child_id)
-                result = await self._database.execute(
-                    "UPDATE task_definitions SET child_id = ? "
-                    "WHERE id = ?",
-                    (child_id, definition_id),
-                )
-        return result.rowcount
-
-    async def _validate_assignable_child(self, child_id: int) -> None:
-        """Raise ValueError unless the child exists and is active.
-
-        MUST be called inside the connection lock so the verdict cannot
-        go stale before the caller's UPDATE commits.
-        """
-        child = await self._database.fetch_one(
-            "SELECT is_active FROM children WHERE id = ?", (child_id,)
-        )
-        if child is None:
-            raise ValueError(f"child {child_id} does not exist")
-        if not child[0]:
-            raise ValueError(
-                f"child {child_id} is inactive and cannot be assigned"
-            )

tests/test_dao_children.py

@@ -1,557 +0,0 @@
-"""Tests for dao_children.py: typed DAO for children and admin_users."""
-from __future__ import annotations
-
-import asyncio
-import sqlite3
-
-import pytest
-
-from custom_components.nestquest.dao_children import (
-    AdminUserRecord,
-    AdminUsersDao,
-    ChildRecord,
-    ChildrenDao,
-)
-from custom_components.nestquest.db import NestQuestDatabase
-from custom_components.nestquest.schema import SCHEMA_V1_STATEMENTS
-from custom_components.nestquest.migrations import apply_migrations
-
-
-def _run(coro):
-    return asyncio.new_event_loop().run_until_complete(coro)
-
-
-def _make_hass_mock():
-    from unittest.mock import AsyncMock, MagicMock
-
-    hass = MagicMock()
-    hass.async_add_executor_job = AsyncMock(side_effect=(lambda fn, *a: fn(*a)))
-    return hass
-
-
-def _open_db(path) -> NestQuestDatabase:
-    database = NestQuestDatabase(_make_hass_mock())
-    _run(database.open(path))
-    _run(apply_migrations(database))
-    return database
-
-
-def _daos(database) -> tuple[ChildrenDao, AdminUsersDao]:
-    return ChildrenDao(database), AdminUsersDao(database)
-
-
-NOW = "2026-09-14T11:00:00+00:00"
-
-
-def _make_child(dao, name="Ada", **kwargs) -> ChildRecord:
-    return _run(dao.create(name, NOW, **kwargs))
-
-
-# ---------------------------------------------------------------------------
-# children: create and get
-# ---------------------------------------------------------------------------
-
-
-def test_create_returns_typed_record(tmp_path) -> None:
-    database = _open_db(tmp_path / "create.db")
-    try:
-        dao, _ = _daos(database)
-        child = _make_child(dao, colour="#ff0000", avatar_ref="avatars/1")
-        assert isinstance(child, ChildRecord)
-        assert child.id == 1
-        assert child.display_name == "Ada"
-        assert child.colour == "#ff0000"
-        assert child.avatar_ref == "avatars/1"
-        assert child.sort_order == 0
-        assert child.is_active is True
-        assert child.created_at == NOW
-    finally:
-        _run(database.close())
-
-
-def test_get_returns_none_for_missing_child(tmp_path) -> None:
-    database = _open_db(tmp_path / "get-missing.db")
-    try:
-        dao, _ = _daos(database)
-        assert _run(dao.get(999)) is None
-    finally:
-        _run(database.close())
-
-
-def test_create_duplicate_name_is_allowed(tmp_path) -> None:
-    database = _open_db(tmp_path / "dup-name.db")
-    try:
-        dao, _ = _daos(database)
-        first = _make_child(dao, "Ada")
-        second = _make_child(dao, "Ada")
-        assert first.id != second.id
-    finally:
-        _run(database.close())
-
-
-# ---------------------------------------------------------------------------
-# children: list active / list all
-# ---------------------------------------------------------------------------
-
-
-def test_list_active_excludes_inactive_and_sorts(tmp_path) -> None:
-    database = _open_db(tmp_path / "list-active.db")
-    try:
-        dao, _ = _daos(database)
-        _make_child(dao, "Bo", sort_order=2)
-        ada = _make_child(dao, "Ada", sort_order=1)
-        cy = _make_child(dao, "Cy", sort_order=1)
-        _make_child(dao, "Dee", sort_order=0)
-        _run(dao.set_active(ada.id, False))
-        active = _run(dao.list_active())
-        assert [c.display_name for c in active] == ["Dee", "Cy", "Bo"]
-        assert all(c.is_active for c in active)
-    finally:
-        _run(database.close())
-
-
-def test_list_all_includes_inactive(tmp_path) -> None:
-    database = _open_db(tmp_path / "list-all.db")
-    try:
-        dao, _ = _daos(database)
-        ada = _make_child(dao, "Ada", sort_order=1)
-        _make_child(dao, "Bo", sort_order=0)
-        _run(dao.set_active(ada.id, False))
-        all_children = _run(dao.list_all())
-        assert [c.display_name for c in all_children] == ["Bo", "Ada"]
-        assert all_children[1].is_active is False
-    finally:
-        _run(database.close())
-
-
-# ---------------------------------------------------------------------------
-# children: update, set_active, reorder
-# ---------------------------------------------------------------------------
-
-
-def test_update_fields_round_trip(tmp_path) -> None:
-    database = _open_db(tmp_path / "update.db")
-    try:
-        dao, _ = _daos(database)
-        child = _make_child(dao, "Ada", colour="#111111")
-        updated = _run(
-            dao.update(
-                child.id,
-                display_name="Ada L.",
-                colour="#222222",
-                avatar_ref="avatars/x.png",
-            )
-        )
-        assert updated == 1
-        fetched = _run(dao.get(child.id))
-        assert fetched is not None
-        assert fetched.display_name == "Ada L."
-        assert fetched.colour == "#222222"
-        assert fetched.avatar_ref == "avatars/x.png"
-        assert fetched.sort_order == 0
-    finally:
-        _run(database.close())
-
-
-def test_update_omitted_fields_untouched(tmp_path) -> None:
-    database = _open_db(tmp_path / "update-partial.db")
-    try:
-        dao, _ = _daos(database)
-        child = _make_child(dao, "Ada", colour="#111111")
-        _run(dao.update(child.id, display_name="Ada L."))
-        fetched = _run(dao.get(child.id))
-        assert fetched.colour == "#111111"
-    finally:
-        _run(database.close())
-
-
-def test_update_no_fields_returns_zero_and_changes_nothing(tmp_path) -> None:
-    database = _open_db(tmp_path / "update-empty.db")
-    try:
-        dao, _ = _daos(database)
-        child = _make_child(dao, "Ada")
-        assert _run(dao.update(child.id)) == 0
-        fetched = _run(dao.get(child.id))
-        assert fetched is not None and fetched.display_name == "Ada"
-    finally:
-        _run(database.close())
-
-
-def test_update_missing_child_returns_zero(tmp_path) -> None:
-    database = _open_db(tmp_path / "update-missing.db")
-    try:
-        dao, _ = _daos(database)
-        assert _run(dao.update(999, display_name="X")) == 0
-    finally:
-        _run(database.close())
-
-
-def test_set_active_missing_child_returns_zero(tmp_path) -> None:
-    database = _open_db(tmp_path / "set-active-missing.db")
-    try:
-        dao, _ = _daos(database)
-        assert _run(dao.set_active(999, False)) == 0
-    finally:
-        _run(database.close())
-
-
-def test_reorder_assigns_positions_in_order(tmp_path) -> None:
-    database = _open_db(tmp_path / "reorder.db")
-    try:
-        dao, _ = _daos(database)
-        a = _make_child(dao, "Ada")
-        b = _make_child(dao, "Bo")
-        c = _make_child(dao, "Cy")
-        _run(dao.reorder([c.id, a.id, b.id]))
-        children = _run(dao.list_all())
-        assert [x.display_name for x in children] == ["Cy", "Ada", "Bo"]
-        assert [x.sort_order for x in children] == [0, 1, 2]
-    finally:
-        _run(database.close())
-
-
-def test_reorder_is_transactional_and_idempotent(tmp_path) -> None:
-    database = _open_db(tmp_path / "reorder-idempotent.db")
-    try:
-        dao, _ = _daos(database)
-        a = _make_child(dao, "Ada")
-        b = _make_child(dao, "Bo")
-        _run(dao.reorder([b.id, a.id]))
-        _run(dao.reorder([b.id, a.id]))
-        children = _run(dao.list_all())
-        assert [(x.display_name, x.sort_order) for x in children] == [
-            ("Bo", 0),
-            ("Ada", 1),
-        ]
-    finally:
-        _run(database.close())
-
-
-def test_reorder_empty_list_is_noop(tmp_path) -> None:
-    database = _open_db(tmp_path / "reorder-empty.db")
-    try:
-        dao, _ = _daos(database)
-        _make_child(dao, "Ada")
-        _run(dao.reorder([]))
-        children = _run(dao.list_all())
-        assert children[0].sort_order == 0
-    finally:
-        _run(database.close())
-
-
-def test_reorder_unknown_id_leaves_it_untouched(tmp_path) -> None:
-    database = _open_db(tmp_path / "reorder-unknown.db")
-    try:
-        dao, _ = _daos(database)
-        a = _make_child(dao, "Ada")
-        _run(dao.reorder([a.id, 999]))
-        children = _run(dao.list_all())
-        assert children[0].sort_order == 0
-    finally:
-        _run(database.close())
-
-
-def test_reorder_rolls_back_to_original_order_on_failure(tmp_path) -> None:
-    """A failing finalize batch rolls the whole reorder back.
-
-    The two-phase staging is only meaningful if a crash between the
-    batches leaves the original order intact: monkeypatch execute_many
-    so the finalize (non-negative) batch raises, then assert every
-    sort_order is unchanged.
-    """
-    database = _open_db(tmp_path / "reorder-rollback.db")
-    try:
-        dao, _ = _daos(database)
-        a = _make_child(dao, "Ada", sort_order=0)
-        b = _make_child(dao, "Bo", sort_order=1)
-
-        original_execute_many = database.execute_many
-
-        async def _failing_execute_many(sql, parameters):
-            # The staging batch writes negative positions; the finalize
-            # batch writes 0..n-1.  Fail the finalize batch.
-            if all(position >= 0 for position, _ in parameters):
-                raise sqlite3.OperationalError("boom")
-            return await original_execute_many(sql, parameters)
-
-        database.execute_many = _failing_execute_many
-        with pytest.raises(sqlite3.OperationalError, match="boom"):
-            _run(dao.reorder([b.id, a.id]))
-        children = _run(dao.list_all())
-        assert [(c.display_name, c.sort_order) for c in children] == [
-            ("Ada", 0),
-            ("Bo", 1),
-        ], "failed reorder must leave original sort orders intact"
-    finally:
-        _run(database.close())
-
-
-def test_reorder_rejects_duplicate_ids(tmp_path) -> None:
-    database = _open_db(tmp_path / "reorder-duplicate.db")
-    try:
-        dao, _ = _daos(database)
-        a = _make_child(dao, "Ada")
-        with pytest.raises(ValueError, match="duplicate"):
-            _run(dao.reorder([a.id, a.id]))
-        fetched = _run(dao.get(a.id))
-        assert fetched is not None and fetched.sort_order == 0
-    finally:
-        _run(database.close())
-
-
-def test_reorder_concurrent_calls_serialize(tmp_path) -> None:
-    """Concurrent reorders from DIFFERENT DAO instances queue safely.
-
-    Two ChildrenDao objects over one connection race two reorders: the
-    connection-scoped lock makes the second wait, then run against the
-    first call's final state.  Without the lock the wrapper's
-    transaction() would reject the second concurrent transaction with
-    RuntimeError.
-    """
-    async def _main() -> None:
-        database = NestQuestDatabase(_make_hass_mock())
-        await database.open(tmp_path / "reorder-concurrent.db")
-        try:
-            await apply_migrations(database)
-            dao_a, _ = _daos(database)
-            a = await dao_a.create("Ada", NOW)
-            b = await dao_a.create("Bo", NOW)
-            dao_b, _ = _daos(database)  # second instance, same connection
-            task_1 = asyncio.ensure_future(dao_a.reorder([b.id, a.id]))
-            await asyncio.sleep(0)
-            task_2 = asyncio.ensure_future(dao_b.reorder([a.id, b.id]))
-            await asyncio.gather(task_1, task_2)
-            children = await dao_a.list_all()
-            orders = {c.display_name: c.sort_order for c in children}
-            assert sorted(orders.values()) == [0, 1]
-        finally:
-            await database.close()
-
-    _run(_main())
-
-
-# ---------------------------------------------------------------------------
-# admin_users: add, remove, list, exists
-# ---------------------------------------------------------------------------
-
-
-def test_admin_add_then_exists(tmp_path) -> None:
-    database = _open_db(tmp_path / "admin-add.db")
-    try:
-        _, dao = _daos(database)
-        assert _run(dao.add("user-1", NOW)) is True
-        assert _run(dao.exists("user-1")) is True
-        assert _run(dao.exists("user-2")) is False
-    finally:
-        _run(database.close())
-
-
-def test_admin_add_is_idempotent(tmp_path) -> None:
-    database = _open_db(tmp_path / "admin-idempotent.db")
-    try:
-        _, dao = _daos(database)
-        assert _run(dao.add("user-1", NOW)) is True
-        assert _run(dao.add("user-1", NOW)) is False
-        records = _run(dao.list())
-        assert len(records) == 1
-        assert records[0].added_at == NOW
-    finally:
-        _run(database.close())
-
-
-def test_admin_add_concurrent_calls_are_idempotent(tmp_path) -> None:
-    """Concurrent add() calls of the same user: one inserts, rest False.
-
-    The single-statement ON CONFLICT DO NOTHING makes the decision and
-    the write atomic per statement, so racing coroutines cannot both
-    'see no row' and one of them raise IntegrityError.
-    """
-    async def _main() -> None:
-        database = NestQuestDatabase(_make_hass_mock())
-        await database.open(tmp_path / "admin-race.db")
-        try:
-            await apply_migrations(database)
-            _, dao = _daos(database)
-            tasks = [
-                asyncio.ensure_future(dao.add("user-1", NOW))
-                for _ in range(5)
-            ]
-            await asyncio.sleep(0)
-            results = list(await asyncio.gather(*tasks))
-            assert sorted(results) == [False, False, False, False, True]
-            records = await dao.list()
-            assert len(records) == 1
-            assert records[0].added_at == NOW
-        finally:
-            await database.close()
-
-    _run(_main())
-
-
-def test_admin_add_preserves_original_added_at(tmp_path) -> None:
-    database = _open_db(tmp_path / "admin-added-at.db")
-    try:
-        _, dao = _daos(database)
-        _run(dao.add("user-1", NOW))
-        _run(dao.add("user-1", "2026-09-15T00:00:00+00:00"))
-        records = _run(dao.list())
-        assert records[0].added_at == NOW
-    finally:
-        _run(database.close())
-
-
-def test_admin_remove_returns_true_then_false(tmp_path) -> None:
-    database = _open_db(tmp_path / "admin-remove.db")
-    try:
-        _, dao = _daos(database)
-        _run(dao.add("user-1", NOW))
-        assert _run(dao.remove("user-1")) is True
-        assert _run(dao.remove("user-1")) is False
-        assert _run(dao.exists("user-1")) is False
-    finally:
-        _run(database.close())
-
-
-def test_admin_list_returns_typed_records_ordered(tmp_path) -> None:
-    database = _open_db(tmp_path / "admin-list.db")
-    try:
-        _, dao = _daos(database)
-        _run(dao.add("user-2", "2026-09-14T10:00:00+00:00"))
-        _run(dao.add("user-1", "2026-09-14T09:00:00+00:00"))
-        records = _run(dao.list())
-        assert isinstance(records[0], AdminUserRecord)
-        assert [r.ha_user_id for r in records] == ["user-1", "user-2"]
-        assert records[0].added_at == "2026-09-14T09:00:00+00:00"
-    finally:
-        _run(database.close())
-
-
-def test_admin_exists_empty_allowlist_fails_closed(tmp_path) -> None:
-    database = _open_db(tmp_path / "admin-empty.db")
-    try:
-        _, dao = _daos(database)
-        assert _run(dao.exists("user-1")) is False
-        assert _run(dao.list()) == []
-    finally:
-        _run(database.close())
-
-
-def test_admin_records_are_typed_not_raw_rows(tmp_path) -> None:
-    database = _open_db(tmp_path / "admin-typed.db")
-    try:
-        _, dao = _daos(database)
-        _run(dao.add("user-1", NOW))
-        records = _run(dao.list())
-        assert records == [AdminUserRecord("user-1", NOW)]
-    finally:
-        _run(database.close())
-
-
-# ---------------------------------------------------------------------------
-# No SQL for these tables outside the DAO module
-# ---------------------------------------------------------------------------
-
-
-def test_children_and_admin_sql_lives_only_in_dao_module() -> None:
-    """Guardrail: children/admin_users SQL may appear only in the DAO
-    (and the schema DDL declarations).  Scans the integration package
-    AND the repo's test files RECURSIVELY, matching FROM/INTO/UPDATE/
-    DELETE FROM/JOIN against either table — including DELETE FROM
-    children, the hard-delete path the guardrail forbids.
-
-    Exclusions are exact repo-relative paths, narrowly justified:
-    schema.py declares the tables' DDL; migrations.py applies that DDL;
-    test_schema.py and test_migrations.py test exactly those
-    DDL/migration layers.  None of them touch the tables' data paths —
-    that is the DAO's job.
-    """
-    import re
-    from pathlib import Path
-
-    package = Path(
-        __import__(
-            "custom_components.nestquest", fromlist=["__file__"]
-        ).__file__
-    ).parent
-    repo_root = package.parent.parent
-    scan_roots = [package, repo_root / "tests"]
-
-    allowed = {
-        "custom_components/nestquest/dao_children.py",  # the DAO itself
-        "custom_components/nestquest/dao_rules.py",  # validates child
-        # activeness on assignment (FK to children, done-condition
-        # 'validates that the assigned child is active')
-        "custom_components/nestquest/schema.py",  # declares the DDL
-        "custom_components/nestquest/migrations.py",  # applies the DDL
-        "tests/test_schema.py",  # tests the DDL
-        "tests/test_migrations.py",  # tests migration application
-        "tests/test_dao_children.py",  # this file, scanned separately
-        "tests/test_dao_rules.py",  # rules/definitions guard, own scope
-    }
-    sql_pattern = re.compile(
-        r"(FROM|INTO|UPDATE|DELETE\s+FROM|JOIN)\s+"
-        r'["\`]*(children|admin_users)["\`]*\b',
-        re.IGNORECASE,
-    )
-    offenders: list[str] = []
-    for root in scan_roots:
-        for py in sorted(root.rglob("*.py")):
-            relative = py.relative_to(repo_root).as_posix()
-            if relative in allowed:
-                continue
-            if sql_pattern.search(py.read_text()):
-                offenders.append(relative)
-    assert offenders == [], (
-        f"SQL touching children/admin_users leaked into: {offenders}"
-    )
-
-
-def test_dao_test_file_uses_dao_not_raw_table_sql() -> None:
-    """This test module must exercise the DAO, not raw SQL, for these
-    tables.  The two guard functions in this file necessarily mention
-    the table names inside their regex patterns; their source spans are
-    removed BEFORE the scan, and the remaining lines are then scanned
-    as ONE combined blob (not line-by-line), so SQL split across
-    physical lines — e.g. an implicitly concatenated string ending in
-    FROM children — is still caught.  The guard regexes themselves
-    cannot match the SQL keyword pattern, so removing the spans only
-    spares regex text, not executable SQL.
-    """
-    import ast
-    import re
-    from pathlib import Path
-
-    path = Path(__file__)
-    text = path.read_text()
-    lines = text.splitlines(keepends=True)
-    tree = ast.parse(text)
-    guard_names = {
-        "test_children_and_admin_sql_lives_only_in_dao_module",
-        "test_dao_test_file_uses_dao_not_raw_table_sql",
-    }
-    excluded: set[int] = set()
-    for node in ast.walk(tree):
-        if (
-            isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef))
-            and node.name in guard_names
-        ):
-            excluded.update(
-                range(node.lineno, (node.end_lineno or node.lineno) + 1)
-            )
-
-    # Scan the source minus excluded lines as ONE blob so SQL split
-    # across physical lines cannot evade the pattern.
-    remaining = "".join(
-        line
-        for number, line in enumerate(lines, start=1)
-        if number not in excluded
-    )
-    sql_pattern = re.compile(
-        r"(SELECT\s[^\"']*?FROM|INSERT\s+INTO|UPDATE|"
-        r"DELETE\s+FROM|FROM|JOIN)\s+[`'\"]*(\[)?"
-        r"(children|admin_users)\b",
-        re.IGNORECASE,
-    )
-    assert sql_pattern.search(remaining) is None, (
-        "tests must go through the DAO, not raw SQL, for these tables"
-    )

tests/test_dao_rules.py

@@ -1,862 +0,0 @@
-"""Tests for dao_rules.py: typed DAO for schedule_rules and task_definitions."""
-from __future__ import annotations
-
-import asyncio
-import sqlite3
-
-import pytest
-
-from custom_components.nestquest.dao_children import ChildrenDao
-from custom_components.nestquest.dao_rules import (
-    ScheduleRuleRecord,
-    ScheduleRulesDao,
-    TaskDefinitionRecord,
-    TaskDefinitionsDao,
-)
-from custom_components.nestquest.db import NestQuestDatabase
-from custom_components.nestquest.migrations import apply_migrations
-
-
-def _run(coro):
-    return asyncio.new_event_loop().run_until_complete(coro)
-
-
-def _make_hass_mock():
-    from unittest.mock import AsyncMock, MagicMock
-
-    hass = MagicMock()
-    hass.async_add_executor_job = AsyncMock(side_effect=(lambda fn, *a: fn(*a)))
-    return hass
-
-
-NOW = "2026-09-14T12:00:00+00:00"
-
-
-async def _prepare(path) -> tuple:
-    database = NestQuestDatabase(_make_hass_mock())
-    await database.open(path)
-    await apply_migrations(database)
-    rules = ScheduleRulesDao(database)
-    definitions = TaskDefinitionsDao(database)
-    children = ChildrenDao(database)
-    child = await children.create("Ada", NOW)
-    return database, rules, definitions, children, child
-
-
-def _with_db(tmp_path, name):
-    """Run an async body against a prepared database, closing it after."""
-
-    def _run_test(body):
-        async def _main():
-            database, rules, definitions, children, child = await _prepare(
-                tmp_path / name
-            )
-            try:
-                return await body(database, rules, definitions, children, child)
-            finally:
-                await database.close()
-
-        return _run(_main())
-
-    return _run_test
-
-
-# ---------------------------------------------------------------------------
-# schedule_rules: create / get
-# ---------------------------------------------------------------------------
-
-
-def test_rule_create_returns_typed_record(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create(
-            "weekly", "2026-09-14", weekday_set="0,2,4", interval=2
-        )
-        assert isinstance(rule, ScheduleRuleRecord)
-        assert rule.id == 1
-        assert rule.rule_type == "weekly"
-        assert rule.interval == 2
-        assert rule.weekday_set == "0,2,4"
-        assert rule.day_of_month is None
-        assert rule.nth_weekday is None
-        assert rule.month is None
-        assert rule.start_date == "2026-09-14"
-        assert rule.end_date is None
-        return rule
-
-    _with_db(tmp_path, "rule-create.db")(_body)
-
-
-def test_rule_create_monthly_with_day_of_month(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create(
-            "monthly", "2026-09-14", day_of_month=15, weekday_set=None
-        )
-        assert rule.day_of_month == 15
-        assert rule.weekday_set is None
-        return rule
-
-    _with_db(tmp_path, "rule-monthly.db")(_body)
-
-
-def test_rule_get_missing_returns_none(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        return await rules.get(999)
-
-    assert _with_db(tmp_path, "rule-get-missing.db")(_body) is None
-
-
-def test_rule_create_coherence_enforced_by_schema(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        with pytest.raises(sqlite3.IntegrityError, match="CHECK"):
-            await rules.create("weekly", "2026-09-14", weekday_set=None)
-        return None
-
-    _with_db(tmp_path, "rule-coherence.db")(_body)
-
-
-def test_rule_create_rejects_malformed_dates(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        for bad in (
-            "not-a-date",
-            "2026-9-4",
-            "2026-13-01",
-            "2026-02-30",
-            "09-14",
-            "",
-        ):
-            with pytest.raises(ValueError, match="YYYY-MM-DD"):
-                await rules.create("daily", bad)
-            with pytest.raises(ValueError, match="YYYY-MM-DD"):
-                await rules.create("daily", "2026-09-14", end_date=bad)
-        return None
-
-    _with_db(tmp_path, "rule-create-dates.db")(_body)
-
-
-def test_rule_create_end_before_start_rejected(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        with pytest.raises(sqlite3.IntegrityError, match="CHECK"):
-            await rules.create(
-                "daily", "2026-09-14", end_date="2026-09-13"
-            )
-        return None
-
-    _with_db(tmp_path, "rule-dates.db")(_body)
-
-
-# ---------------------------------------------------------------------------
-# schedule_rules: update
-# ---------------------------------------------------------------------------
-
-
-def test_rule_update_fields_round_trip(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("weekly", "2026-09-14", weekday_set="0,2")
-        updated = await rules.update(
-            rule.id, weekday_set="1,3", interval=3, end_date="2026-12-31"
-        )
-        assert updated == 1
-        fetched = await rules.get(rule.id)
-        assert fetched.weekday_set == "1,3"
-        assert fetched.interval == 3
-        assert fetched.end_date == "2026-12-31"
-        assert fetched.rule_type == "weekly"
-        return fetched
-
-    _with_db(tmp_path, "rule-update.db")(_body)
-
-
-def test_rule_update_omitted_fields_untouched(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("weekly", "2026-09-14", weekday_set="0,2")
-        await rules.update(rule.id, interval=2)
-        fetched = await rules.get(rule.id)
-        assert fetched.weekday_set == "0,2"
-        assert fetched.start_date == "2026-09-14"
-        return fetched
-
-    _with_db(tmp_path, "rule-update-partial.db")(_body)
-
-
-def test_rule_update_no_fields_returns_zero(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        return await rules.update(rule.id)
-
-    assert _with_db(tmp_path, "rule-update-empty.db")(_body) == 0
-
-
-def test_rule_update_missing_rule_returns_zero(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        return await rules.update(999, interval=2)
-
-    assert _with_db(tmp_path, "rule-update-missing.db")(_body) == 0
-
-
-def test_rule_update_bad_type_rejected_by_check(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        with pytest.raises(sqlite3.IntegrityError, match="CHECK"):
-            await rules.update(rule.id, rule_type="sometimes")
-        return None
-
-    _with_db(tmp_path, "rule-update-bad-type.db")(_body)
-
-
-def test_rule_update_can_clear_nullable_fields(tmp_path) -> None:
-    """Explicit None clears a nullable column; omitted leaves it alone.
-
-    A caller must be able to reopen an ended rule (end_date back to
-    NULL) and clear rule-shape fields; the _UNSET sentinel keeps
-    'omitted' distinct from 'write NULL'.
-    """
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create(
-            "weekly",
-            "2026-09-14",
-            weekday_set="0,2",
-            end_date="2026-12-31",
-            month=3,
-        )
-        # Omitted: nothing changes.
-        await rules.update(rule.id, interval=2)
-        kept = await rules.get(rule.id)
-        assert kept.end_date == "2026-12-31"
-        assert kept.month == 3
-        # Explicit None: clears both.
-        await rules.update(rule.id, end_date=None, month=None)
-        cleared = await rules.get(rule.id)
-        assert cleared.end_date is None
-        assert cleared.month is None
-        assert cleared.interval == 2
-        return cleared
-
-    _with_db(tmp_path, "rule-update-clear.db")(_body)
-
-
-def test_rule_update_validates_date_shape(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        for bad in ("not-a-date", "2026-9-4", "2026-13-01", "09-14"):
-            with pytest.raises(ValueError, match="YYYY-MM-DD"):
-                await rules.update(rule.id, start_date=bad)
-            with pytest.raises(ValueError, match="YYYY-MM-DD"):
-                await rules.update(rule.id, end_date=bad)
-        # None is still allowed (clears the column) without validation.
-        await rules.update(rule.id, end_date=None)
-        return None
-
-    _with_db(tmp_path, "rule-update-dates.db")(_body)
-
-
-# ---------------------------------------------------------------------------
-# schedule_rules: delete-if-unreferenced
-# ---------------------------------------------------------------------------
-
-
-def test_rule_delete_unreferenced_succeeds(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        assert await rules.delete_if_unreferenced(rule.id) is True
-        return await rules.get(rule.id)
-
-    assert _with_db(tmp_path, "rule-delete-ok.db")(_body) is None
-
-
-def test_rule_delete_referenced_is_rejected(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        await definitions.create("Brush teeth", child.id, rule.id, NOW)
-        assert await rules.delete_if_unreferenced(rule.id) is False
-        fetched = await rules.get(rule.id)
-        assert fetched is not None, (
-            "referenced rule must survive the delete attempt"
-        )
-        return fetched
-
-    _with_db(tmp_path, "rule-delete-referenced.db")(_body)
-
-
-def test_rule_delete_missing_returns_false(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        return await rules.delete_if_unreferenced(999)
-
-    assert _with_db(tmp_path, "rule-delete-missing.db")(_body) is False
-
-
-def test_rule_delete_after_last_reference_removed_succeeds(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        definition = await definitions.create(
-            "Brush teeth", child.id, rule.id, NOW
-        )
-        assert await rules.delete_if_unreferenced(rule.id) is False
-        await definitions.set_active(definition.id, False)
-        # Deactivation is NOT deletion: the definition still references
-        # the rule, so the delete must still be rejected.
-        assert await rules.delete_if_unreferenced(rule.id) is False
-        return None
-
-    _with_db(tmp_path, "rule-delete-inactive-ref.db")(_body)
-
-
-def test_rule_delete_concurrent_with_definition_create_is_safe(
-    tmp_path,
-) -> None:
-    """A racing definition creation cannot produce a dangling reference.
-
-    Both operations queue on the connection lock, so exactly one of two
-    safe outcomes happens: the create wins and the delete is rejected
-    (definition exists, rule exists), or the delete wins and the create
-    fails cleanly with ValueError (rule gone).  A definition row
-    pointing at a deleted rule is impossible in either case.
-
-    BOTH orderings are forced: delete-first by starting the delete and
-    yielding; create-first by hooking ScheduleRulesDao.get so the
-    create's validation pauses mid-flight before the delete starts.
-    """
-    async def _main(order: str):
-        database = NestQuestDatabase(_make_hass_mock())
-        await database.open(tmp_path / f"rule-delete-race-{order}.db")
-        try:
-            await apply_migrations(database)
-            children = ChildrenDao(database)
-            rules = ScheduleRulesDao(database)
-            definitions = TaskDefinitionsDao(database)
-            child = await children.create("Ada", NOW)
-            rule_a = await rules.create("daily", "2026-09-14")
-
-            if order == "create-first":
-                # Pause the create inside its rule validation: the hook
-                # blocks after the rule-lookup statement until the
-                # delete task has been scheduled, so the create holds
-                # the connection lock while the delete queues behind
-                # it — then the create proceeds and wins.
-                import custom_components.nestquest.dao_rules as dao_rules
-
-                original_validate = (
-                    dao_rules.TaskDefinitionsDao._validate_assignable
-                )
-                release = asyncio.Event()
-                started = asyncio.Event()
-
-                async def _pausing_validate(self, child_id, rule_id):
-                    # Run the real validation FIRST (this is the
-                    # time-of-check), THEN pause: the delete task gets
-                    # scheduled while the create sits between its
-                    # passed validation and its INSERT.  The serialized
-                    # transaction must keep the delete queued until the
-                    # insert commits, so the create must win the race
-                    # and the delete must be rejected as referenced.
-                    await original_validate(self, child_id, rule_id)
-                    if rule_id == rule_a.id and not started.is_set():
-                        started.set()
-                        await release.wait()
-
-                dao_rules.TaskDefinitionsDao._validate_assignable = (
-                    _pausing_validate
-                )
-                try:
-                    create_task = asyncio.ensure_future(
-                        definitions.create(
-                            "Brush teeth", child.id, rule_a.id, NOW
-                        )
-                    )
-                    await started.wait()
-                    delete_task = asyncio.ensure_future(
-                        rules.delete_if_unreferenced(rule_a.id)
-                    )
-                    await asyncio.sleep(0)
-                    started.clear()
-                    release.set()
-                    deleted, creation = await asyncio.gather(
-                        delete_task, create_task, return_exceptions=True
-                    )
-                finally:
-                    dao_rules.TaskDefinitionsDao._validate_assignable = (
-                        original_validate
-                    )
-            else:
-                async def _delete():
-                    return await rules.delete_if_unreferenced(rule_a.id)
-
-                async def _create():
-                    return await definitions.create(
-                        "Brush teeth", child.id, rule_a.id, NOW
-                    )
-
-                delete_task = asyncio.ensure_future(_delete())
-                await asyncio.sleep(0)
-                create_task = asyncio.ensure_future(_create())
-                deleted, creation = await asyncio.gather(
-                    delete_task, create_task, return_exceptions=True
-                )
-
-            assert not isinstance(deleted, BaseException), (
-                f"delete must queue, not crash: {deleted!r}"
-            )
-            rule_row = await rules.get(rule_a.id)
-            if deleted:
-                # Delete won: the create must have failed cleanly.
-                assert isinstance(creation, ValueError), (
-                    f"creating against a deleted rule must raise "
-                    f"ValueError, got {creation!r}"
-                )
-                assert rule_row is None
-            else:
-                # Create won: the delete was rejected, both rows exist.
-                assert isinstance(creation, TaskDefinitionRecord), (
-                    f"create must succeed, got {creation!r}"
-                )
-                assert rule_row is not None
-            return deleted
-        finally:
-            await database.close()
-
-    delete_won = _run(_main("delete-first"))
-    create_won = _run(_main("create-first"))
-    # delete-first: the delete acquires the lock before the create can
-    # validate, so the rule is gone and the create fails cleanly.
-    assert delete_won is True
-    # create-first: validation passed, the create holds the lock across
-    # its INSERT, so the queued delete must find the definition and be
-    # rejected — the create must NOT lose its rule after validating it.
-    assert create_won is False
-
-
-# ---------------------------------------------------------------------------
-# task_definitions: create / get
-# ---------------------------------------------------------------------------
-
-
-def test_definition_create_returns_typed_record(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("weekly", "2026-09-14", weekday_set="0,2")
-        definition = await definitions.create(
-            "Brush teeth",
-            child.id,
-            rule.id,
-            NOW,
-            description="Morning and night",
-            icon="mdi:tooth",
-            due_time="08:00",
-        )
-        assert isinstance(definition, TaskDefinitionRecord)
-        assert definition.title == "Brush teeth"
-        assert definition.child_id == child.id
-        assert definition.schedule_rule_id == rule.id
-        assert definition.due_time == "08:00"
-        assert definition.is_active is True
-        assert definition.created_at == NOW
-        return definition
-
-    _with_db(tmp_path, "definition-create.db")(_body)
-
-
-def test_definition_get_missing_returns_none(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        return await definitions.get(999)
-
-    assert _with_db(tmp_path, "definition-get-missing.db")(_body) is None
-
-
-def test_definition_create_unknown_child_raises_value_error(
-    tmp_path,
-) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        with pytest.raises(ValueError, match="does not exist"):
-            await definitions.create("X", 999, rule.id, NOW)
-        return None
-
-    _with_db(tmp_path, "definition-bad-child.db")(_body)
-
-
-def test_definition_create_inactive_child_raises_value_error(
-    tmp_path,
-) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        await children.set_active(child.id, False)
-        with pytest.raises(ValueError, match="inactive"):
-            await definitions.create("X", child.id, rule.id, NOW)
-        return None
-
-    _with_db(tmp_path, "definition-inactive-child.db")(_body)
-
-
-def test_definition_create_unknown_rule_raises_value_error(
-    tmp_path,
-) -> None:
-    async def _body(database, rules, definitions, children, child):
-        with pytest.raises(ValueError, match="does not exist"):
-            await definitions.create("X", child.id, 999, NOW)
-        return None
-
-    _with_db(tmp_path, "definition-bad-rule.db")(_body)
-
-
-# ---------------------------------------------------------------------------
-# task_definitions: list by child / list active
-# ---------------------------------------------------------------------------
-
-
-def test_definition_list_by_child_filters_and_orders(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        other_child = await children.create("Bo", NOW)
-        await definitions.create("A", child.id, rule.id, NOW)
-        await definitions.create("B", child.id, rule.id, NOW)
-        await definitions.create("C", other_child.id, rule.id, NOW)
-        mine = await definitions.list_by_child(child.id)
-        assert [d.title for d in mine] == ["B", "A"]
-        return mine
-
-    _with_db(tmp_path, "definition-list-by-child.db")(_body)
-
-
-def test_definition_list_by_child_missing_child_returns_empty(
-    tmp_path,
-) -> None:
-    async def _body(database, rules, definitions, children, child):
-        return await definitions.list_by_child(999)
-
-    assert _with_db(tmp_path, "definition-list-missing.db")(_body) == []
-
-
-def test_definition_list_active_excludes_inactive(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        first = await definitions.create("A", child.id, rule.id, NOW)
-        await definitions.create("B", child.id, rule.id, NOW)
-        await definitions.set_active(first.id, False)
-        active = await definitions.list_active()
-        assert [d.title for d in active] == ["B"]
-        assert all(d.is_active for d in active)
-        return active
-
-    _with_db(tmp_path, "definition-list-active.db")(_body)
-
-
-# ---------------------------------------------------------------------------
-# task_definitions: update / set_active / set_assignee
-# ---------------------------------------------------------------------------
-
-
-def test_definition_update_fields_round_trip(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        definition = await definitions.create(
-            "A", child.id, rule.id, NOW, due_time="08:00"
-        )
-        assert await definitions.update(
-            definition.id,
-            title="A2",
-            description="New",
-            icon="mdi:star",
-            due_time="09:00",
-        ) == 1
-        fetched = await definitions.get(definition.id)
-        assert fetched.title == "A2"
-        assert fetched.description == "New"
-        assert fetched.icon == "mdi:star"
-        assert fetched.due_time == "09:00"
-        return fetched
-
-    _with_db(tmp_path, "definition-update.db")(_body)
-
-
-def test_definition_update_cannot_change_assignee_or_active(
-    tmp_path,
-) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        other = await children.create("Bo", NOW)
-        definition = await definitions.create("A", child.id, rule.id, NOW)
-        # title= / child_id= / is_active= are NOT update() parameters;
-        # this asserts the API shape: reassignment and activation have
-        # their own explicit methods.
-        import inspect
-
-        parameters = inspect.signature(definitions.update).parameters
-        assert set(parameters) == {
-            "definition_id",
-            "title",
-            "description",
-            "icon",
-            "due_time",
-        }
-        assert await definitions.update(
-            definition.id, title="A2"
-        ) == 1
-        fetched = await definitions.get(definition.id)
-        assert fetched.child_id == child.id
-        assert fetched.is_active is True
-        return fetched
-
-    _with_db(tmp_path, "definition-update-shape.db")(_body)
-
-
-def test_definition_update_no_fields_returns_zero(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        definition = await definitions.create("A", child.id, rule.id, NOW)
-        return await definitions.update(definition.id)
-
-    assert _with_db(tmp_path, "definition-update-empty.db")(_body) == 0
-
-
-def test_definition_update_can_clear_optional_fields(tmp_path) -> None:
-    """Explicit None removes description/icon/due_time; omitted keeps."""
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        definition = await definitions.create(
-            "A",
-            child.id,
-            rule.id,
-            NOW,
-            description="d",
-            icon="mdi:x",
-            due_time="08:00",
-        )
-        await definitions.update(definition.id, title="A2")
-        kept = await definitions.get(definition.id)
-        assert kept.description == "d"
-        assert kept.icon == "mdi:x"
-        await definitions.update(
-            definition.id, description=None, icon=None, due_time=None
-        )
-        cleared = await definitions.get(definition.id)
-        assert cleared.description is None
-        assert cleared.icon is None
-        assert cleared.due_time is None
-        assert cleared.title == "A2"
-        return cleared
-
-    _with_db(tmp_path, "definition-update-clear.db")(_body)
-
-
-def test_definition_update_missing_returns_zero(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        return await definitions.update(999, title="X")
-
-    assert _with_db(tmp_path, "definition-update-missing.db")(_body) == 0
-
-
-def test_definition_set_active_round_trip(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        definition = await definitions.create("A", child.id, rule.id, NOW)
-        assert await definitions.set_active(definition.id, False) == 1
-        fetched = await definitions.get(definition.id)
-        assert fetched.is_active is False
-        assert await definitions.set_active(definition.id, True) == 1
-        fetched = await definitions.get(definition.id)
-        assert fetched.is_active is True
-        return fetched
-
-    _with_db(tmp_path, "definition-set-active.db")(_body)
-
-
-def test_definition_set_active_missing_returns_zero(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        return await definitions.set_active(999, False)
-
-    assert _with_db(tmp_path, "definition-set-active-missing.db")(_body) == 0
-
-
-def test_definition_no_delete_method_exists(tmp_path) -> None:
-    """Guardrail: definitions are deactivated, never hard-deleted."""
-    async def _body(database, rules, definitions, children, child):
-        import inspect
-
-        methods = {
-            name
-            for name, _ in inspect.getmembers(
-                TaskDefinitionsDao, inspect.isfunction
-            )
-        }
-        assert "delete" not in methods
-        assert not any(name.startswith("delete") for name in methods)
-        return methods
-
-    _with_db(tmp_path, "definition-no-delete.db")(_body)
-
-
-def test_definition_set_assignee_round_trip(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        other = await children.create("Bo", NOW)
-        definition = await definitions.create("A", child.id, rule.id, NOW)
-        assert await definitions.set_assignee(definition.id, other.id) == 1
-        fetched = await definitions.get(definition.id)
-        assert fetched.child_id == other.id
-        return fetched
-
-    _with_db(tmp_path, "definition-set-assignee.db")(_body)
-
-
-def test_definition_set_assignee_inactive_child_raises(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        other = await children.create("Bo", NOW)
-        definition = await definitions.create("A", child.id, rule.id, NOW)
-        await children.set_active(other.id, False)
-        with pytest.raises(ValueError, match="inactive"):
-            await definitions.set_assignee(definition.id, other.id)
-        fetched = await definitions.get(definition.id)
-        assert fetched.child_id == child.id, (
-            "failed reassignment must leave the current assignee intact"
-        )
-        return fetched
-
-    _with_db(tmp_path, "definition-assignee-inactive.db")(_body)
-
-
-def test_definition_set_assignee_unknown_child_raises(tmp_path) -> None:
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        definition = await definitions.create("A", child.id, rule.id, NOW)
-        with pytest.raises(ValueError, match="does not exist"):
-            await definitions.set_assignee(definition.id, 999)
-        return None
-
-    _with_db(tmp_path, "definition-assignee-unknown.db")(_body)
-
-
-def test_definition_set_assignee_missing_definition_returns_zero(
-    tmp_path,
-) -> None:
-    async def _body(database, rules, definitions, children, child):
-        other = await children.create("Bo", NOW)
-        return await definitions.set_assignee(999, other.id)
-
-    assert _with_db(tmp_path, "definition-assignee-missing.db")(_body) == 0
-
-
-def test_definition_set_assignee_leaves_history_rows_alone(
-    tmp_path,
-) -> None:
-    """Reassignment writes the definition row only: any instances that
-    already exist keep their generation-time child_id (Feature 06
-    guardrail 'changes future instances only').
-    """
-    async def _body(database, rules, definitions, children, child):
-        rule = await rules.create("daily", "2026-09-14")
-        other = await children.create("Bo", NOW)
-        definition = await definitions.create("A", child.id, rule.id, NOW)
-        # Simulate an already-generated instance (materialization owns
-        # this table, but its row shape proves reassignment isolation).
-        await database.execute(
-            "INSERT INTO task_instances (definition_id, child_id, "
-            "due_date, generated_at) VALUES (?, ?, ?, ?)",
-            (definition.id, child.id, "2026-09-15", NOW),
-        )
-        await definitions.set_assignee(definition.id, other.id)
-        row = await database.fetch_one(
-            "SELECT child_id FROM task_instances WHERE definition_id = ?",
-            (definition.id,),
-        )
-        assert row == (child.id,)
-        return None
-
-    _with_db(tmp_path, "definition-assignee-history.db")(_body)
-
-
-# ---------------------------------------------------------------------------
-# No SQL for these tables outside the DAO module
-# ---------------------------------------------------------------------------
-
-
-def test_rules_and_definitions_sql_lives_only_in_dao_module() -> None:
-    """Guardrail: schedule_rules/task_definitions SQL may appear only
-    in the DAO modules (and the schema DDL declarations).  RECURSIVE
-    scan of package and tests, FROM/INTO/UPDATE/DELETE FROM/JOIN
-    pattern, with exact repo-relative exclusions justified by role:
-    schema.py declares the DDL, migrations.py applies it, and the
-    test files for exactly those layers verify DDL, not data paths.
-    """
-    import re
-    from pathlib import Path
-
-    package = Path(
-        __import__(
-            "custom_components.nestquest", fromlist=["__file__"]
-        ).__file__
-    ).parent
-    repo_root = package.parent.parent
-    scan_roots = [package, repo_root / "tests"]
-
-    allowed = {
-        "custom_components/nestquest/dao_rules.py",  # this DAO
-        "custom_components/nestquest/schema.py",  # declares the DDL
-        "custom_components/nestquest/migrations.py",  # applies the DDL
-        "tests/test_schema.py",  # tests the DDL
-        "tests/test_migrations.py",  # tests migration application
-        "tests/test_dao_rules.py",  # this file, scanned separately
-        # dao_children.py is NOT exempt: it holds no SQL for these
-        # tables (its FK reference check names task_definitions only
-        # inside delete_if_unreferenced's comment-free SQL? No — that
-        # lives HERE in dao_rules).  Any future leak there must fail.
-    }
-    sql_pattern = re.compile(
-        r"(FROM|INTO|UPDATE|DELETE\s+FROM|JOIN)\s+[`'\"]*(\[)?"
-        r"(schedule_rules|task_definitions)\b",
-        re.IGNORECASE,
-    )
-    offenders: list[str] = []
-    for root in scan_roots:
-        for py in sorted(root.rglob("*.py")):
-            relative = py.relative_to(repo_root).as_posix()
-            if relative in allowed:
-                continue
-            if sql_pattern.search(py.read_text()):
-                offenders.append(relative)
-    assert offenders == [], (
-        f"SQL touching schedule_rules/task_definitions leaked into: "
-        f"{offenders}"
-    )
-
-
-def test_dao_rules_test_file_uses_dao_not_raw_table_sql() -> None:
-    """This test module must exercise the DAO, not raw SQL, for these
-    tables.  Exceptions: the guard functions' own spans (their regexes
-    mention the names), and the reassignment-isolation test, which
-    legitimately touches task_instances — a table this DAO does not
-    own — to prove the guardrail that reassignment leaves it alone.
-    """
-    import ast
-    import re
-    from pathlib import Path
-
-    path = Path(__file__)
-    text = path.read_text()
-    lines = text.splitlines(keepends=True)
-    tree = ast.parse(text)
-    guard_names = {
-        "test_rules_and_definitions_sql_lives_only_in_dao_module",
-        "test_dao_rules_test_file_uses_dao_not_raw_table_sql",
-    }
-    excluded: set[int] = set()
-    for node in ast.walk(tree):
-        if (
-            isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef))
-            and node.name in guard_names
-        ):
-            excluded.update(
-                range(node.lineno, (node.end_lineno or node.lineno) + 1)
-            )
-
-    remaining = "".join(
-        line
-        for number, line in enumerate(lines, start=1)
-        if number not in excluded
-    )
-    sql_pattern = re.compile(
-        r"(SELECT\s[^\"']*?FROM|INSERT\s+INTO|UPDATE|DELETE\s+FROM|"
-        r"FROM|JOIN)\s+[`'\"]*(\[)?(schedule_rules|task_definitions)\b",
-        re.IGNORECASE,
-    )
-    assert sql_pattern.search(remaining) is None, (
-        "tests must go through the DAO, not raw SQL, for these tables"
-    )