Add idea actions: add to Quest log and cook tonight (Feature 18)

POST /api/v1/ideas/{jobId}/items/{i}/quest-log adds idea i of a
succeeded ideas job to the Quest log as a dinner grounded in the idea's
own recipe, with origin ingredients or quick, or answers the dinner it
repeats as it is (the Regular dedupe rule), so repeating the call is
idempotent. POST .../cook-tonight does the same, then puts the dinner on
today (household timezone) of this week's plan through plan.Service.Swap;
with no plan for the week it answers 409 no_plan and changes nothing.

Maestro task 54dcd487-1597-4a91-8493-97f3a7635e2d.

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

internal/server/server.go

@@ -57,7 +57,9 @@ type RouteMounter interface {
 // /api/v1/integrations/google and its /connect, /callback and /calendars,
 // PUT /api/v1/integrations/google/calendar and DELETE
 // /api/v1/integrations/google; ideasSvc serves POST
-// /api/v1/ideas/from-ingredients and POST /api/v1/ideas/quick; runner serves
+// /api/v1/ideas/from-ingredients and POST /api/v1/ideas/quick, and with
+// dinnerSvc POST /api/v1/ideas/{jobId}/items/{i}/quest-log and, with
+// planSvc too, /cook-tonight; runner serves
 // POST /api/v1/jobs and GET /api/v1/jobs/{id}; photos serves
 // GET /media/photos/{id}-{size}.jpg; assets is the web build
 // served for every other GET. /health, /auth and the web build are public.
@@ -165,6 +167,8 @@ func NewRouter(logger *slog.Logger, version string, trusted forwarded.Trusted, a
 	apiV1.Put("/integrations/google/calendar", putGoogleCalendar(logger, googleSvc))
 	apiV1.Post("/ideas/from-ingredients", postIdeasFromIngredients(logger, ideasSvc))
 	apiV1.Post("/ideas/quick", postIdeasQuick(logger, ideasSvc))
+	apiV1.Post("/ideas/{jobId}/items/{i}/quest-log", postIdeaQuestLog(logger, ideasSvc, dinnerSvc))
+	apiV1.Post("/ideas/{jobId}/items/{i}/cook-tonight", postIdeaCookTonight(logger, ideasSvc, dinnerSvc, planSvc))
 	apiV1.Post("/jobs", postJob(logger, runner))
 	apiV1.Get("/jobs/{id}", getJob(logger, runner))
 	media.Get("/photos/{name}", getPhoto(logger, photos))