fix(mobile): URL changement mdp corrigée + v3.0 — multi-org, AppAuth, sécurité prod

Auth:
- profile_repository.dart: /api/auth/change-password → /api/membres/auth/change-password

Multi-org (Phase 3):
- OrgSelectorPage, OrgSwitcherBloc, OrgSwitcherEntry
- org_context_service.dart: headers X-Active-Organisation-Id + X-Active-Role

Navigation:
- MorePage: navigation conditionnelle par typeOrganisation
- Suppression adaptive_navigation (remplacé par main_navigation_layout)

Auth AppAuth:
- keycloak_webview_auth_service: fixes AppAuth Android
- AuthBloc: gestion REAUTH_REQUIS + premierLoginComplet

Onboarding:
- Nouveaux états: payment_method_page, onboarding_shared_widgets
- SouscriptionStatusModel mis à jour StatutValidationSouscription

Android:
- build.gradle: ProGuard/R8, network_security_config
- Gradle wrapper mis à jour

lib/features/members/data/repositories/membre_repository_impl.dart

@@ -240,7 +240,7 @@ class MembreRepositoryImpl implements IMembreRepository {
   @override
   Future<MembreCompletModel> activateMembre(String id) async {
     try {
-      final response = await _apiClient.post('$_baseUrl/$id/activer');
+      final response = await _apiClient.put('$_baseUrl/$id/activer');
 
       if (response.statusCode == 200) {
         return MembreCompletModel.fromJson(response.data as Map<String, dynamic>);
@@ -257,7 +257,7 @@ class MembreRepositoryImpl implements IMembreRepository {
   @override
   Future<MembreCompletModel> deactivateMembre(String id) async {
     try {
-      final response = await _apiClient.post('$_baseUrl/$id/desactiver');
+      final response = await _apiClient.put('$_baseUrl/$id/desactiver');
 
       if (response.statusCode == 200) {
         return MembreCompletModel.fromJson(response.data as Map<String, dynamic>);
@@ -339,5 +339,114 @@ class MembreRepositoryImpl implements IMembreRepository {
       rethrow;
     }
   }
+
+  @override
+  Future<MembreCompletModel> resetMotDePasse(String id) async {
+    try {
+      final response = await _apiClient.put('$_baseUrl/$id/reinitialiser-mot-de-passe');
+
+      if (response.statusCode == 200) {
+        return MembreCompletModel.fromJson(response.data as Map<String, dynamic>);
+      } else {
+        throw Exception('Erreur lors de la réinitialisation du mot de passe: ${response.statusCode}');
+      }
+    } on DioException {
+      rethrow;
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  @override
+  Future<MembreCompletModel> affecterOrganisation(String membreId, String organisationId) async {
+    try {
+      final response = await _apiClient.put(
+        '$_baseUrl/$membreId/affecter-organisation',
+        queryParameters: {'organisationId': organisationId},
+      );
+
+      if (response.statusCode == 200) {
+        return MembreCompletModel.fromJson(response.data as Map<String, dynamic>);
+      } else {
+        throw Exception('Erreur lors de l\'affectation à l\'organisation: ${response.statusCode}');
+      }
+    } on DioException {
+      rethrow;
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  // ── Cycle de vie des adhésions ────────────────────────────────────────────
+
+  @override
+  Future<Map<String, dynamic>> inviterMembre(
+    String membreId,
+    String organisationId, {
+    String? roleOrg,
+  }) async {
+    final response = await _apiClient.put(
+      '$_baseUrl/$membreId/inviter-organisation',
+      queryParameters: {
+        'organisationId': organisationId,
+        if (roleOrg != null) 'roleOrg': roleOrg,
+      },
+    );
+    if (response.statusCode == 200) {
+      return Map<String, dynamic>.from(response.data as Map);
+    }
+    throw Exception('Invitation échouée: ${response.statusCode}');
+  }
+
+  @override
+  Future<Map<String, dynamic>> activerAdhesion(
+    String membreId,
+    String organisationId, {
+    String? motif,
+  }) async {
+    final response = await _apiClient.put(
+      '$_baseUrl/$membreId/adhesion/activer',
+      queryParameters: {'organisationId': organisationId},
+      data: motif != null ? {'motif': motif} : <String, dynamic>{},
+    );
+    if (response.statusCode == 200) {
+      return Map<String, dynamic>.from(response.data as Map);
+    }
+    throw Exception('Activation échouée: ${response.statusCode}');
+  }
+
+  @override
+  Future<Map<String, dynamic>> suspendrAdhesion(
+    String membreId,
+    String organisationId, {
+    String? motif,
+  }) async {
+    final response = await _apiClient.put(
+      '$_baseUrl/$membreId/adhesion/suspendre',
+      queryParameters: {'organisationId': organisationId},
+      data: motif != null ? {'motif': motif} : <String, dynamic>{},
+    );
+    if (response.statusCode == 200) {
+      return Map<String, dynamic>.from(response.data as Map);
+    }
+    throw Exception('Suspension échouée: ${response.statusCode}');
+  }
+
+  @override
+  Future<Map<String, dynamic>> radierAdhesion(
+    String membreId,
+    String organisationId, {
+    String? motif,
+  }) async {
+    final response = await _apiClient.put(
+      '$_baseUrl/$membreId/adhesion/radier',
+      queryParameters: {'organisationId': organisationId},
+      data: motif != null ? {'motif': motif} : <String, dynamic>{},
+    );
+    if (response.statusCode == 200) {
+      return Map<String, dynamic>.from(response.data as Map);
+    }
+    throw Exception('Radiation échouée: ${response.statusCode}');
+  }
 }