feat: add updated_at to modpacks and /api/launcher/modpacks/summary endpoint

internal/database/modpack_repository.go

@@ -101,3 +101,28 @@ func (r *ModpackRepository) GetAllFileHashes(ctx context.Context) (map[string]st
 
 	return hashes, rows.Err()
 }
+
+// GetModpacksSummary возвращает список всех активных модпаков с датой последнего обновления.
+func (r *ModpackRepository) GetModpacksSummary(ctx context.Context) ([]models.ModpackSummary, error) {
+	query := `
+		SELECT name, updated_at
+		FROM modpacks
+		WHERE is_active = TRUE`
+
+	rows, err := r.DB.Query(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var summaries []models.ModpackSummary
+	for rows.Next() {
+		var s models.ModpackSummary
+		if err := rows.Scan(&s.Name, &s.UpdatedAt); err != nil {
+			return nil, err
+		}
+		summaries = append(summaries, s)
+	}
+
+	return summaries, nil
+}