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>

test/features/authentication/bloc/auth_bloc_test.mocks.dart

@@ -0,0 +1,148 @@
+// Mocks generated by Mockito 5.4.6 from annotations
+// in unionflow_mobile_apps/test/features/authentication/bloc/auth_bloc_test.dart.
+// Do not manually edit this file.
+
+// ignore_for_file: no_leading_underscores_for_library_prefixes
+import 'dart:async' as _i3;
+
+import 'package:mockito/mockito.dart' as _i1;
+import 'package:unionflow_mobile_apps/core/network/org_context_service.dart'
+    as _i5;
+import 'package:unionflow_mobile_apps/features/authentication/data/datasources/keycloak_auth_service.dart'
+    as _i2;
+import 'package:unionflow_mobile_apps/features/authentication/data/models/user.dart'
+    as _i4;
+
+// ignore_for_file: type=lint
+// ignore_for_file: avoid_redundant_argument_values
+// ignore_for_file: avoid_setters_without_getters
+// ignore_for_file: comment_references
+// ignore_for_file: deprecated_member_use
+// ignore_for_file: deprecated_member_use_from_same_package
+// ignore_for_file: implementation_imports
+// ignore_for_file: invalid_use_of_visible_for_testing_member
+// ignore_for_file: must_be_immutable
+// ignore_for_file: prefer_const_constructors
+// ignore_for_file: unnecessary_parenthesis
+// ignore_for_file: camel_case_types
+// ignore_for_file: subtype_of_sealed_class
+// ignore_for_file: invalid_use_of_internal_member
+
+/// A class which mocks [KeycloakAuthService].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockKeycloakAuthService extends _i1.Mock
+    implements _i2.KeycloakAuthService {
+  MockKeycloakAuthService() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  _i3.Future<_i4.User?> loginWithAppAuth() =>
+      (super.noSuchMethod(
+            Invocation.method(#loginWithAppAuth, []),
+            returnValue: _i3.Future<_i4.User?>.value(),
+          )
+          as _i3.Future<_i4.User?>);
+
+  @override
+  _i3.Future<String?> refreshToken() =>
+      (super.noSuchMethod(
+            Invocation.method(#refreshToken, []),
+            returnValue: _i3.Future<String?>.value(),
+          )
+          as _i3.Future<String?>);
+
+  @override
+  _i3.Future<String?> getValidAccessToken() =>
+      (super.noSuchMethod(
+            Invocation.method(#getValidAccessToken, []),
+            returnValue: _i3.Future<String?>.value(),
+          )
+          as _i3.Future<String?>);
+
+  @override
+  _i3.Future<_i4.User?> getCurrentUser() =>
+      (super.noSuchMethod(
+            Invocation.method(#getCurrentUser, []),
+            returnValue: _i3.Future<_i4.User?>.value(),
+          )
+          as _i3.Future<_i4.User?>);
+
+  @override
+  _i3.Future<void> logout() =>
+      (super.noSuchMethod(
+            Invocation.method(#logout, []),
+            returnValue: _i3.Future<void>.value(),
+            returnValueForMissingStub: _i3.Future<void>.value(),
+          )
+          as _i3.Future<void>);
+
+  @override
+  _i3.Future<String?> getValidToken() =>
+      (super.noSuchMethod(
+            Invocation.method(#getValidToken, []),
+            returnValue: _i3.Future<String?>.value(),
+          )
+          as _i3.Future<String?>);
+
+  @override
+  _i3.Future<_i2.AuthStatusResult?> getAuthStatus(String? apiBaseUrl) =>
+      (super.noSuchMethod(
+            Invocation.method(#getAuthStatus, [apiBaseUrl]),
+            returnValue: _i3.Future<_i2.AuthStatusResult?>.value(),
+          )
+          as _i3.Future<_i2.AuthStatusResult?>);
+}
+
+/// A class which mocks [OrgContextService].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockOrgContextService extends _i1.Mock implements _i5.OrgContextService {
+  MockOrgContextService() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  Set<String> get modulesActifs =>
+      (super.noSuchMethod(
+            Invocation.getter(#modulesActifs),
+            returnValue: <String>{},
+          )
+          as Set<String>);
+
+  @override
+  bool get hasContext =>
+      (super.noSuchMethod(Invocation.getter(#hasContext), returnValue: false)
+          as bool);
+
+  @override
+  bool isModuleActif(String? module) =>
+      (super.noSuchMethod(
+            Invocation.method(#isModuleActif, [module]),
+            returnValue: false,
+          )
+          as bool);
+
+  @override
+  void setActiveOrganisation({
+    required String? organisationId,
+    required String? nom,
+    String? type,
+    String? modulesActifsCsv,
+  }) => super.noSuchMethod(
+    Invocation.method(#setActiveOrganisation, [], {
+      #organisationId: organisationId,
+      #nom: nom,
+      #type: type,
+      #modulesActifsCsv: modulesActifsCsv,
+    }),
+    returnValueForMissingStub: null,
+  );
+
+  @override
+  void clear() => super.noSuchMethod(
+    Invocation.method(#clear, []),
+    returnValueForMissingStub: null,
+  );
+}