feat: Implement group balance and expense management with new navigation and data handling

lib/models/trip.dart

@@ -76,8 +76,6 @@ class Trip {
         status: map['status'] as String? ?? 'draft',
       );
     } catch (e) {
-      print('❌ Erreur parsing Trip: $e');
-      print('Map reçue: $map');
       rethrow;
     }
   }