simulacion de estados y flujo de notificacion, modificacion de estilos en todas las vistas

recolecta_app/lib/features/incidents/data/incident_service.dart

@@ -16,13 +16,38 @@ class IncidentService {
   final Dio _dio;
 
   Future<List<UnitOption>> listUnits() async {
-    final res = await _dio.get<List<dynamic>>('/incidents/units');
+    final res = await _dio.get<List<dynamic>>(
+      '/incidents/units',
+      options: Options(
+        receiveTimeout: const Duration(seconds: 6),
+        sendTimeout: const Duration(seconds: 6),
+      ),
+    );
     return (res.data ?? [])
         .whereType<Map>()
         .map((e) => UnitOption.fromJson(Map<String, dynamic>.from(e)))
         .toList();
   }
 
+  /// Devuelve la unidad asignada al domicilio (vía su ruta).
+  /// `null` si el backend responde 404 (sin ruta o sin unidad).
+  Future<UnitOption?> getAddressUnit(String addressId) async {
+    try {
+      final res = await _dio.get<Map<String, dynamic>>(
+        '/addresses/$addressId/unit',
+        options: Options(
+          receiveTimeout: const Duration(seconds: 6),
+          sendTimeout: const Duration(seconds: 6),
+        ),
+      );
+      if (res.data == null) return null;
+      return UnitOption.fromJson(res.data!);
+    } on DioException catch (e) {
+      if (e.response?.statusCode == 404) return null;
+      rethrow;
+    }
+  }
+
   Future<IncidentReport> createIncident({
     required String category,
     required String description,