Fix BASE_URL config loading, add tasks/projects; robust .env path resolution

- Config: try ENV_FILE, .env, ../.env for loading; trim trailing slash from BaseURL
- Log BASE_URL at server startup for verification
- .env.example: document BASE_URL
- Tasks, projects, tags, migrations and related API/handlers

Made-with: Cursor

internal/repository/subscriptions.sql.go

@@ -105,17 +105,6 @@ func (q *Queries) ListSubscriptionsByCalendar(ctx context.Context, calendarID pg
 	return items, nil
 }
 
-const updateSubscriptionLastSynced = `-- name: UpdateSubscriptionLastSynced :exec
-UPDATE calendar_subscriptions
-SET last_synced_at = now()
-WHERE id = $1
-`
-
-func (q *Queries) UpdateSubscriptionLastSynced(ctx context.Context, id pgtype.UUID) error {
-	_, err := q.db.Exec(ctx, updateSubscriptionLastSynced, id)
-	return err
-}
-
 const listSubscriptionsDueForSync = `-- name: ListSubscriptionsDueForSync :many
 SELECT s.id, s.calendar_id, s.source_url, c.owner_id
 FROM calendar_subscriptions s
@@ -139,10 +128,15 @@ func (q *Queries) ListSubscriptionsDueForSync(ctx context.Context) ([]ListSubscr
 		return nil, err
 	}
 	defer rows.Close()
-	var items []ListSubscriptionsDueForSyncRow
+	items := []ListSubscriptionsDueForSyncRow{}
 	for rows.Next() {
 		var i ListSubscriptionsDueForSyncRow
-		if err := rows.Scan(&i.ID, &i.CalendarID, &i.SourceUrl, &i.OwnerID); err != nil {
+		if err := rows.Scan(
+			&i.ID,
+			&i.CalendarID,
+			&i.SourceUrl,
+			&i.OwnerID,
+		); err != nil {
 			return nil, err
 		}
 		items = append(items, i)
@@ -152,3 +146,14 @@ func (q *Queries) ListSubscriptionsDueForSync(ctx context.Context) ([]ListSubscr
 	}
 	return items, nil
 }
+
+const updateSubscriptionLastSynced = `-- name: UpdateSubscriptionLastSynced :exec
+UPDATE calendar_subscriptions
+SET last_synced_at = now()
+WHERE id = $1
+`
+
+func (q *Queries) UpdateSubscriptionLastSynced(ctx context.Context, id pgtype.UUID) error {
+	_, err := q.db.Exec(ctx, updateSubscriptionLastSynced, id)
+	return err
+}