feat(wip): Update entities and adopt a proper repository workflow for trip "obtention"

frontend/lib/domain/entities/trip.g.dart

@@ -7,13 +7,15 @@ part of 'trip.dart';
 // **************************************************************************
 
 _Trip _$TripFromJson(Map<String, dynamic> json) => _Trip(
-      uuid: json['uuid'] as String,
-      landmarks: (json['landmarks'] as List<dynamic>)
-          .map((e) => Landmark.fromJson(e as Map<String, dynamic>))
-          .toList(),
-    );
+  uuid: json['uuid'] as String,
+  totalTimeMinutes: (json['totalTimeMinutes'] as num?)?.toInt(),
+  landmarks: (json['landmarks'] as List<dynamic>)
+      .map((e) => Landmark.fromJson(e as Map<String, dynamic>))
+      .toList(),
+);
 
 Map<String, dynamic> _$TripToJson(_Trip instance) => <String, dynamic>{
-      'uuid': instance.uuid,
-      'landmarks': instance.landmarks,
-    };
+  'uuid': instance.uuid,
+  'totalTimeMinutes': instance.totalTimeMinutes,
+  'landmarks': instance.landmarks,
+};