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_state.dart

@@ -0,0 +1,67 @@
+import 'package:equatable/equatable.dart';
+
+class FinanceSummary extends Equatable {
+  final double totalContributionsPaid;
+  final double totalContributionsPending;
+  final double epargneBalance;
+  
+  const FinanceSummary({
+    required this.totalContributionsPaid,
+    required this.totalContributionsPending,
+    required this.epargneBalance,
+  });
+
+  @override
+  List<Object?> get props => [totalContributionsPaid, totalContributionsPending, epargneBalance];
+}
+
+class FinanceTransaction extends Equatable {
+  final String id;
+  final String title;
+  final String date;
+  final double amount;
+  final String status;
+
+  const FinanceTransaction({
+    required this.id,
+    required this.title,
+    required this.date,
+    required this.amount,
+    required this.status, // "Payé", "En attente"
+  });
+
+  @override
+  List<Object?> get props => [id, title, date, amount, status];
+}
+
+abstract class FinanceState extends Equatable {
+  const FinanceState();
+  
+  @override
+  List<Object?> get props => [];
+}
+
+class FinanceInitial extends FinanceState {}
+
+class FinanceLoading extends FinanceState {}
+
+class FinanceLoaded extends FinanceState {
+  final FinanceSummary summary;
+  final List<FinanceTransaction> transactions;
+
+  const FinanceLoaded({
+    required this.summary,
+    required this.transactions,
+  });
+
+  @override
+  List<Object?> get props => [summary, transactions];
+}
+
+class FinanceError extends FinanceState {
+  final String message;
+  const FinanceError(this.message);
+
+  @override
+  List<Object?> get props => [message];
+}