feat: WebSocket temps réel + Finance Workflow + corrections

- Task #6: WebSocket /ws/dashboard + Kafka events (5 topics)
  * Backend: KafkaEventProducer, KafkaEventConsumer
  * Mobile: WebSocketService (reconnection, heartbeat, typed events)
  * DashboardBloc: Auto-refresh depuis WebSocket events

- Finance Workflow: approbations + budgets (backend + mobile)
  * Backend: entities, services, resources, migrations Flyway V6
  * Mobile: features finance_workflow complète avec BLoC

- Corrections DI: interfaces IRepository partout
  * IProfileRepository, IOrganizationRepository, IMembreRepository
  * GetIt configuré avec @injectable

- Spec-Kit: constitution + templates mis à jour
  * .specify/memory/constitution.md enrichie
  * Templates agent, plan, spec, tasks, checklist

- Nettoyage: fichiers temporaires supprimés

Signed-off-by: lions dev Team

unionflow/unionflow-mobile-apps/lib/core/config/environment.dart

@@ -26,15 +26,15 @@ class AppConfig {
       case Environment.dev:
         apiBaseUrl = const String.fromEnvironment(
           'API_URL',
-          defaultValue: 'http://192.168.1.11:8085',
+          defaultValue: 'http://localhost:8085',
         );
         keycloakBaseUrl = const String.fromEnvironment(
           'KEYCLOAK_URL',
-          defaultValue: 'http://192.168.1.11:8180',
+          defaultValue: 'http://localhost:8180',
         );
         wsBaseUrl = const String.fromEnvironment(
           'WS_URL',
-          defaultValue: 'ws://192.168.1.11:8085',
+          defaultValue: 'ws://localhost:8085',
         );
         enableDebugMode = true;
         enableLogging = true;