Wake the scheduler on plan and dinner changes (MQ-177-01)

A swap, stored draft, or dinner method/minutes change (edit or grounding)
now calls Scheduler.Wake once committed, so a crock-pot dinner swapped in
for tonight is reminded at start_by minus 15 minutes rather than at the
next hourly pass. Adds a fake-clock test that swaps in a crock-pot
Quest-log dinner at 09:01 and asserts the start reminder at 09:15, once.

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

cmd/server/main.go

@@ -130,7 +130,12 @@ func run(cfg config.Config, logger *slog.Logger) error {
 		return err
 	}
 
-	dinnerSvc, err := dinners.NewService(db, grounder, runner, logger)
+	// The scheduler is made before the services whose changes wake it.
+	sched, err := scheduler.New(db, settings, logger)
+	if err != nil {
+		return err
+	}
+	dinnerSvc, err := dinners.NewService(db, grounder, runner, sched.Wake, logger)
 	if err != nil {
 		return err
 	}
@@ -152,7 +157,7 @@ func run(cfg config.Config, logger *slog.Logger) error {
 		return err
 	}
 
-	planSvc, err := plan.NewService(db, weekDrafter(ai, guard), runner, googleSvc, notifier, cfg.PublicURL, logger)
+	planSvc, err := plan.NewService(db, weekDrafter(ai, guard), runner, googleSvc, notifier, sched.Wake, cfg.PublicURL, logger)
 	if err != nil {
 		return err
 	}
@@ -188,10 +193,6 @@ func run(cfg config.Config, logger *slog.Logger) error {
 		return err
 	}
 
-	sched, err := scheduler.New(db, settings, logger)
-	if err != nil {
-		return err
-	}
 	if err := sched.Register(suggestSvc.WeeklySchedule()); err != nil {
 		return err
 	}