feat: BLoC tests complets + sécurité production + freerasp 7.5.1 migration

## Tests BLoC (Task P2.4 Mobile)
- 25 nouveaux fichiers *_bloc_test.dart + mocks générés (build_runner)
- Features couvertes : authentication, admin_users, adhesions, backup,
  communication/messaging, contributions, dashboard, finance (approval/budget),
  events, explore/network, feed, logs_monitoring, notifications, onboarding,
  organizations (switcher/types/CRUD), profile, reports, settings, solidarity
- ~380 tests, > 80% coverage BLoCs

## Sécurité Production (Task P2.2)
- lib/core/security/app_integrity_service.dart (freerasp 7.5.1)
- Migration API breaking changes freerasp 7.5.1 :
  - onRootDetected → onPrivilegedAccess
  - onDebuggerDetected → onDebug
  - onSignatureDetected → onAppIntegrity
  - onHookDetected → onHooks
  - onEmulatorDetected → onSimulator
  - onUntrustedInstallationSourceDetected → onUnofficialStore
  - onDeviceBindingDetected → onDeviceBinding
  - onObfuscationIssuesDetected → onObfuscationIssues
  - Talsec.start() split → start() + attachListener()
  - const AndroidConfig/IOSConfig → final (constructors call ConfigVerifier)
  - supportedAlternativeStores → supportedStores

## Pubspec
- bloc_test: ^9.1.7 → ^10.0.0 (compat flutter_bloc ^9.0.0)
- freerasp 7.5.1

## Config
- android/app/build.gradle : ajustements release
- lib/core/config/environment.dart : URLs API actualisées
- lib/main.dart + app_router : intégrations sécurité/BLoC

## Cleanup
- Suppression docs intermédiaires (TACHES_*.md, TASK_*_COMPLETION_REPORT.md,
  TESTS_UNITAIRES_PROGRESS.md)
- .g.dart régénérés (json_serializable)
- .mocks.dart régénérés (mockito)

## Résultat
- 142 fichiers, +27 596 insertions
- Toutes les tâches P2 mobile complétées

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

lib/features/dashboard/data/models/dashboard_stats_model.g.dart

@@ -13,8 +13,8 @@ DashboardStatsModel _$DashboardStatsModelFromJson(Map<String, dynamic> json) =>
       totalEvents: (json['totalEvents'] as num).toInt(),
       upcomingEvents: (json['upcomingEvents'] as num).toInt(),
       totalContributions: (json['totalContributions'] as num).toInt(),
-      totalContributionAmount:
-          (json['totalContributionAmount'] as num).toDouble(),
+      totalContributionAmount: (json['totalContributionAmount'] as num)
+          .toDouble(),
       pendingRequests: (json['pendingRequests'] as num).toInt(),
       completedProjects: (json['completedProjects'] as num).toInt(),
       monthlyGrowth: (json['monthlyGrowth'] as num).toDouble(),
@@ -23,27 +23,27 @@ DashboardStatsModel _$DashboardStatsModelFromJson(Map<String, dynamic> json) =>
       totalOrganizations: (json['totalOrganizations'] as num?)?.toInt(),
       organizationTypeDistribution:
           (json['organizationTypeDistribution'] as Map<String, dynamic>?)?.map(
-        (k, e) => MapEntry(k, (e as num).toInt()),
-      ),
+            (k, e) => MapEntry(k, (e as num).toInt()),
+          ),
     );
 
 Map<String, dynamic> _$DashboardStatsModelToJson(
-        DashboardStatsModel instance) =>
-    <String, dynamic>{
-      'totalMembers': instance.totalMembers,
-      'activeMembers': instance.activeMembers,
-      'totalEvents': instance.totalEvents,
-      'upcomingEvents': instance.upcomingEvents,
-      'totalContributions': instance.totalContributions,
-      'totalContributionAmount': instance.totalContributionAmount,
-      'pendingRequests': instance.pendingRequests,
-      'completedProjects': instance.completedProjects,
-      'monthlyGrowth': instance.monthlyGrowth,
-      'engagementRate': instance.engagementRate,
-      'lastUpdated': instance.lastUpdated.toIso8601String(),
-      'totalOrganizations': instance.totalOrganizations,
-      'organizationTypeDistribution': instance.organizationTypeDistribution,
-    };
+  DashboardStatsModel instance,
+) => <String, dynamic>{
+  'totalMembers': instance.totalMembers,
+  'activeMembers': instance.activeMembers,
+  'totalEvents': instance.totalEvents,
+  'upcomingEvents': instance.upcomingEvents,
+  'totalContributions': instance.totalContributions,
+  'totalContributionAmount': instance.totalContributionAmount,
+  'pendingRequests': instance.pendingRequests,
+  'completedProjects': instance.completedProjects,
+  'monthlyGrowth': instance.monthlyGrowth,
+  'engagementRate': instance.engagementRate,
+  'lastUpdated': instance.lastUpdated.toIso8601String(),
+  'totalOrganizations': instance.totalOrganizations,
+  'organizationTypeDistribution': instance.organizationTypeDistribution,
+};
 
 RecentActivityModel _$RecentActivityModelFromJson(Map<String, dynamic> json) =>
     RecentActivityModel(
@@ -59,18 +59,18 @@ RecentActivityModel _$RecentActivityModelFromJson(Map<String, dynamic> json) =>
     );
 
 Map<String, dynamic> _$RecentActivityModelToJson(
-        RecentActivityModel instance) =>
-    <String, dynamic>{
-      'id': instance.id,
-      'type': instance.type,
-      'title': instance.title,
-      'description': instance.description,
-      'userAvatar': instance.userAvatar,
-      'userName': instance.userName,
-      'timestamp': instance.timestamp.toIso8601String(),
-      'actionUrl': instance.actionUrl,
-      'metadata': instance.metadata,
-    };
+  RecentActivityModel instance,
+) => <String, dynamic>{
+  'id': instance.id,
+  'type': instance.type,
+  'title': instance.title,
+  'description': instance.description,
+  'userAvatar': instance.userAvatar,
+  'userName': instance.userName,
+  'timestamp': instance.timestamp.toIso8601String(),
+  'actionUrl': instance.actionUrl,
+  'metadata': instance.metadata,
+};
 
 UpcomingEventModel _$UpcomingEventModelFromJson(Map<String, dynamic> json) =>
     UpcomingEventModel(
@@ -106,8 +106,9 @@ Map<String, dynamic> _$UpcomingEventModelToJson(UpcomingEventModel instance) =>
 
 DashboardDataModel _$DashboardDataModelFromJson(Map<String, dynamic> json) =>
     DashboardDataModel(
-      stats:
-          DashboardStatsModel.fromJson(json['stats'] as Map<String, dynamic>),
+      stats: DashboardStatsModel.fromJson(
+        json['stats'] as Map<String, dynamic>,
+      ),
       recentActivities: (json['recentActivities'] as List<dynamic>)
           .map((e) => RecentActivityModel.fromJson(e as Map<String, dynamic>))
           .toList(),