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/presentation/bloc/finance_bloc.dart

@@ -0,0 +1,35 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:injectable/injectable.dart';
+
+import '../../data/repositories/finance_repository.dart';
+import 'finance_event.dart';
+import 'finance_state.dart';
+
+@injectable
+class FinanceBloc extends Bloc<FinanceEvent, FinanceState> {
+  final FinanceRepository _repository;
+
+  FinanceBloc(this._repository) : super(FinanceInitial()) {
+    on<LoadFinanceRequested>(_onLoadFinanceRequested);
+    on<FinancePaymentInitiated>(_onFinancePaymentInitiated);
+  }
+
+  Future<void> _onLoadFinanceRequested(LoadFinanceRequested event, Emitter<FinanceState> emit) async {
+    emit(FinanceLoading());
+    try {
+      final summary = await _repository.getFinancialSummary();
+      final transactions = await _repository.getTransactions();
+      emit(FinanceLoaded(summary: summary, transactions: transactions));
+    } catch (e) {
+      emit(FinanceError('Erreur chargement des finances: $e'));
+    }
+  }
+
+  void _onFinancePaymentInitiated(FinancePaymentInitiated event, Emitter<FinanceState> emit) {
+    // Intégration paiement: appeler le service Wave ou Orange Money (API paiement) selon le design métier.
+    // Pour l'instant, la transaction est gérée côté UI (payment_dialog) et le BLoC reste en FinanceLoaded.
+    if (state is FinanceLoaded) {
+      // Option: émettre FinancePaymentPending puis FinanceLoaded après confirmation API.
+    }
+  }
+}