fix(auth): connexion admin - token snake_case, routes GoRouter, profil (Closes #84)

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/config/app_router.dart

@@ -19,6 +19,8 @@ import '../screens/auth/am_register_step2_screen.dart';
 import '../screens/auth/am_register_step3_screen.dart';
 import '../screens/auth/am_register_step4_screen.dart';
 import '../screens/home/home_screen.dart';
+import '../screens/administrateurs/admin_dashboardScreen.dart';
+import '../screens/home/parent_screen/ParentDashboardScreen.dart';
 import '../screens/unknown_screen.dart';
 
 // --- Provider Instances ---
@@ -47,6 +49,18 @@ class AppRouter {
         path: '/home',
         builder: (BuildContext context, GoRouterState state) => const HomeScreen(),
       ),
+      GoRoute(
+        path: '/admin-dashboard',
+        builder: (BuildContext context, GoRouterState state) => const AdminDashboardScreen(),
+      ),
+      GoRoute(
+        path: '/parent-dashboard',
+        builder: (BuildContext context, GoRouterState state) => const ParentDashboardScreen(),
+      ),
+      GoRoute(
+        path: '/am-dashboard',
+        builder: (BuildContext context, GoRouterState state) => const HomeScreen(),
+      ),
 
       // --- Parent Registration Flow ---
       ShellRoute(

frontend/lib/models/user.dart

@@ -20,8 +20,12 @@ class AppUser {
       id: json['id'] as String,
       email: json['email'] as String,
       role: json['role'] as String,
-      createdAt: DateTime.parse(json['createdAt'] as String),
+      createdAt: json['createdAt'] != null
-      updatedAt: DateTime.parse(json['updatedAt'] as String),
+          ? DateTime.parse(json['createdAt'] as String)
+          : DateTime.now(),
+      updatedAt: json['updatedAt'] != null
+          ? DateTime.parse(json['updatedAt'] as String)
+          : DateTime.now(),
       changementMdpObligatoire: json['changement_mdp_obligatoire'] as bool? ?? false,
     );
   }

frontend/lib/screens/auth/login_screen.dart

@@ -116,21 +116,23 @@ class _LoginPageState extends State<LoginScreen> with WidgetsBindingObserver {
     }
   }
 
-  /// Redirige l'utilisateur selon son rôle
+  /// Redirige l'utilisateur selon son rôle (GoRouter : context.go).
   void _redirectUserByRole(String role) {
+    setState(() => _isLoading = false);
     switch (role.toLowerCase()) {
       case 'super_admin':
+      case 'administrateur':
       case 'gestionnaire':
-        Navigator.pushReplacementNamed(context, '/admin-dashboard');
+        context.go('/admin-dashboard');
         break;
       case 'parent':
-        Navigator.pushReplacementNamed(context, '/parent-dashboard');
+        context.go('/parent-dashboard');
         break;
       case 'assistante_maternelle':
-        Navigator.pushReplacementNamed(context, '/am-dashboard');
+        context.go('/am-dashboard');
         break;
       default:
-        Navigator.pushReplacementNamed(context, '/home');
+        context.go('/home');
     }
   }
 

frontend/lib/services/auth_service.dart

@@ -23,13 +23,15 @@ class AuthService {
 
       if (response.statusCode == 200 || response.statusCode == 201) {
         final data = jsonDecode(response.body);
+        // API renvoie access_token / refresh_token (snake_case)
+        final accessToken = data['access_token'] as String? ?? data['accessToken'] as String?;
+        final refreshToken = data['refresh_token'] as String? ?? data['refreshToken'] as String?;
+        if (accessToken == null) throw Exception('Token absent dans la réponse serveur');
 
-        // Stocker les tokens
+        await TokenService.saveToken(accessToken);
-        await TokenService.saveToken(data['accessToken']);
+        await TokenService.saveRefreshToken(refreshToken ?? '');
-        await TokenService.saveRefreshToken(data['refreshToken']);
 
-        // Récupérer le profil utilisateur pour avoir toutes les infos
+        final user = await _fetchUserProfile(accessToken);
-        final user = await _fetchUserProfile(data['accessToken']);
         
         // Stocker l'utilisateur en cache
         await _saveCurrentUser(user);
@@ -80,8 +82,9 @@ class AuthService {
         Uri.parse('${ApiConfig.baseUrl}${ApiConfig.changePasswordRequired}'),
         headers: ApiConfig.authHeaders(token),
         body: jsonEncode({
-          'currentPassword': currentPassword,
+          'mot_de_passe_actuel': currentPassword,
-          'newPassword': newPassword,
+          'nouveau_mot_de_passe': newPassword,
+          'confirmation_mot_de_passe': newPassword,
         }),
       );