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/.gitignore

@@ -41,3 +41,78 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+# Android specific
+*.apk
+*.aab
+*.ap_
+*.dex
+local.properties
+android/.gradle/
+android/captures/
+android/gradle-wrapper.jar
+android/.externalNativeBuild
+android/GeneratedPluginRegistrant.java
+android/key.properties
+android/app/google-services.json
+
+# iOS specific
+ios/Pods/
+ios/.symlinks/
+ios/Flutter/Flutter.framework
+ios/Flutter/Flutter.podspec
+ios/Runner/GeneratedPluginRegistrant.*
+ios/ServiceDefinitions.json
+ios/Runner.xcworkspace/xcshareddata/
+*.ipa
+*.dSYM.zip
+*.dSYM
+ios/GoogleService-Info.plist
+
+# Coverage
+coverage/
+*.lcov
+
+# Environment & Secrets
+.env
+.env.*
+!.env.example
+*.keystore
+*.jks
+google-services.json
+GoogleService-Info.plist
+firebase_options.dart
+lib/config/secrets.dart
+
+# Generated files
+*.g.dart
+*.freezed.dart
+*.config.dart
+*.mocks.dart
+lib/generated/
+
+# Exceptions (files to keep)
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
+
+# Web specific
+web/firebase-config.js
+
+# macOS
+.fvm/
+.flutter-plugins-dependencies
+pubspec.lock
+
+# Windows
+windows/flutter/generated_plugin_registrant.cc
+windows/flutter/generated_plugin_registrant.h
+
+# Linux
+linux/flutter/generated_plugin_registrant.cc
+linux/flutter/generated_plugin_registrant.h
+
+# IDE
+.vscode/launch.json
+.vscode/settings.json