feat: edit and delete worklog entries

internal/core/worklog/worklog.go

@@ -124,12 +124,30 @@ func buildEntry(nodeID, summary, details, date string, minutes int, approximate,
 
 // Update modifies an existing entry.
 func (s *Service) Update(id, summary, details string, minutes int, approximate, billable bool) error {
+	return s.UpdateWithDate(id, summary, details, "", minutes, approximate, billable)
+}
+
+// UpdateWithDate modifies an existing entry, including its work date when provided.
+func (s *Service) UpdateWithDate(id, summary, details, date string, minutes int, approximate, billable bool) error {
+	if summary == "" {
+		return fmt.Errorf("summary required")
+	}
 	t := time.Now().UTC().Format(time.RFC3339)
-	res, err := s.db.Exec(
-		`UPDATE worklog_entries SET summary=?, details=?, minutes=?,
-			approximate=?, billable=?, updated_at=? WHERE id=?`,
-		summary, details, &minutes, boolInt(approximate), boolInt(billable), t, id,
-	)
+	var res sql.Result
+	var err error
+	if date == "" {
+		res, err = s.db.Exec(
+			`UPDATE worklog_entries SET summary=?, details=?, minutes=?,
+				approximate=?, billable=?, updated_at=? WHERE id=?`,
+			summary, details, &minutes, boolInt(approximate), boolInt(billable), t, id,
+		)
+	} else {
+		res, err = s.db.Exec(
+			`UPDATE worklog_entries SET date=?, summary=?, details=?, minutes=?,
+				approximate=?, billable=?, updated_at=? WHERE id=?`,
+			date, summary, details, &minutes, boolInt(approximate), boolInt(billable), t, id,
+		)
+	}
 	if err != nil {
 		return err
 	}
@@ -179,7 +197,16 @@ func (s *Service) ListByNode(nodeID string) ([]Entry, error) {
 
 // Delete removes an entry.
 func (s *Service) Delete(id string) error {
-	res, err := s.db.Exec("DELETE FROM worklog_entries WHERE id=?", id)
+	tx, err := s.db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	if _, err := tx.Exec("DELETE FROM worklog_entry_events WHERE entry_id=?", id); err != nil {
+		return err
+	}
+	res, err := tx.Exec("DELETE FROM worklog_entries WHERE id=?", id)
 	if err != nil {
 		return err
 	}
@@ -187,7 +214,7 @@ func (s *Service) Delete(id string) error {
 	if n == 0 {
 		return fmt.Errorf("entry not found")
 	}
-	return nil
+	return tx.Commit()
 }
 
 // HasTodayEntries checks if any worklog entries exist for today.

internal/core/worklog/worklog_test.go

@@ -76,12 +76,15 @@ func TestUpdate(t *testing.T) {
 	svc := NewService(db)
 
 	e, _ := svc.Add("node-1", "Old text", "Old details", 60, false, false)
-	err := svc.Update(e.ID, "New text", "New details", 90, true, true)
+	err := svc.UpdateWithDate(e.ID, "New text", "New details", "2026-01-02", 90, true, true)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	got, _ := svc.Get(e.ID)
+	if got.Date != "2026-01-02" {
+		t.Errorf("date = %q", got.Date)
+	}
 	if got.Summary != "New text" {
 		t.Errorf("summary = %q", got.Summary)
 	}