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/features/dashboard/config/dashboard_config.dart

@@ -11,8 +11,7 @@ class DashboardConfig {
   static const String primaryColorHex = '#4169E1'; // Bleu Roi
   static const String secondaryColorHex = '#008B8B'; // Bleu Pétrole
   
-  // Configuration des données
-  static const bool useMockData = false;
+  // Configuration des données (toujours API réelle, pas de données fictives)
   static String get apiBaseUrl => AppConfig.apiBaseUrl;
   static const Duration networkTimeout = Duration(seconds: 30);
   
@@ -282,9 +281,6 @@ class DashboardConfig {
   };
   
   // Méthodes utilitaires
-  static bool get isDevelopment => useMockData;
-  static bool get isProduction => !useMockData;
-  
   static String get fullVersion => '$version+$buildNumber';
   
   static Duration get effectiveRefreshInterval =>