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/shared/widgets/confirmation_dialog.dart

@@ -106,7 +106,7 @@ class ConfirmationDialog extends StatelessWidget {
       actions: [
         TextButton(
           onPressed: () {
-            Navigator.pop(context);
+            Navigator.pop(context, false);
             onCancel?.call();
           },
           child: Text(
@@ -119,7 +119,7 @@ class ConfirmationDialog extends StatelessWidget {
         ),
         ElevatedButton(
           onPressed: () {
-            Navigator.pop(context);
+            Navigator.pop(context, true);
             onConfirm?.call();
           },
           style: ElevatedButton.styleFrom(