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/.cursor/commands/speckit.checklist.md

@@ -1,10 +1,11 @@
 ---
 description: Generate a custom checklist for the current feature based on user requirements.
 scripts:
-  sh: scripts/bash/check-prerequisites.sh --json
   ps: .specify/scripts/powershell/check-prerequisites.ps1 -Json
 ---
 
+**UnionFlow** : Exécuter le script PowerShell depuis la racine du dépôt. Script : `.specify/scripts/powershell/check-prerequisites.ps1 -Json`. Pour les contenus, s'appuyer sur `.specify/memory/inventaire-code.md`. Aucun script Bash n'est fourni.
+
 ## Checklist Purpose: "Unit Tests for English"
 
 **CRITICAL CONCEPT**: Checklists are **UNIT TESTS FOR REQUIREMENTS WRITING** - they validate the quality, clarity, and completeness of requirements in a given domain.