M9.1: wire sync logging into all mutation paths

- Add LogClosedDayDelete and LogClosedWeekDelete to SyncStore
- Inject syncStore into EntryService; log Start, Stop, StopByID,
  Update, CreateInterval, Delete, AutoStopStalledEntries
- Inject syncStore into DayService; log CloseDay, MarkDay, ReopenDay,
  and the recomputeWeek closed-week upsert
- Inject syncStore into SettingsService; log Upsert, UpdateSettings,
  DeleteSettings
- Add LogClosedWeek/LogClosedWeekDelete calls in WeekService.CloseWeek
  and ReopenWeek
- Update main.go and all service test helpers for new constructor signatures
- All Go tests and 19 Vitest tests pass

internal/service/day_service.go

@@ -22,6 +22,7 @@ type DayService struct {
 	closedDays  *store.ClosedDayStore
 	closedWeeks *store.ClosedWeekStore
 	settings    *store.SettingsStore
+	syncStore   *store.SyncStore
 	tz          *time.Location
 }
 
@@ -30,6 +31,7 @@ func NewDayService(
 	closedDays *store.ClosedDayStore,
 	closedWeeks *store.ClosedWeekStore,
 	settings *store.SettingsStore,
+	syncStore *store.SyncStore,
 	tz *time.Location,
 ) *DayService {
 	return &DayService{
@@ -37,6 +39,7 @@ func NewDayService(
 		closedDays:  closedDays,
 		closedWeeks: closedWeeks,
 		settings:    settings,
+		syncStore:   syncStore,
 		tz:          tz,
 	}
 }
@@ -74,7 +77,11 @@ func (s *DayService) recomputeWeek(ctx context.Context, dayKey string) error {
 	cw.WorkedMs = totalWorkedMs
 	cw.DeltaMs = totalWorkedMs - cw.ExpectedMs
 	cw.UpdatedAt = time.Now().UnixMilli()
-	return s.closedWeeks.Upsert(ctx, cw)
+	if err := s.closedWeeks.Upsert(ctx, cw); err != nil {
+		return err
+	}
+	_ = s.syncStore.LogClosedWeek(ctx, cw)
+	return nil
 }
 
 // CloseDay merges all completed entries for the given day key into a ClosedDay.
@@ -136,6 +143,7 @@ func (s *DayService) CloseDay(ctx context.Context, dayKey string) (*domain.Close
 	if err := s.closedDays.Upsert(ctx, cd); err != nil {
 		return nil, err
 	}
+	_ = s.syncStore.LogClosedDay(ctx, cd)
 	if err := s.recomputeWeek(ctx, dayKey); err != nil {
 		return nil, err
 	}
@@ -175,6 +183,7 @@ func (s *DayService) MarkDay(ctx context.Context, dayKey string, kind domain.Day
 	if err := s.closedDays.Upsert(ctx, cd); err != nil {
 		return nil, err
 	}
+	_ = s.syncStore.LogClosedDay(ctx, cd)
 	if err := s.recomputeWeek(ctx, dayKey); err != nil {
 		return nil, err
 	}
@@ -196,6 +205,7 @@ func (s *DayService) ReopenDay(ctx context.Context, dayKey string) error {
 	if err := s.closedDays.Delete(ctx, dayKey); err != nil {
 		return err
 	}
+	_ = s.syncStore.LogClosedDayDelete(ctx, dayKey)
 	return s.recomputeWeek(ctx, dayKey)
 }