feat(100): bandeau dashboard générique, icônes rôle/email, footer go_router, user fromJson défensif

- Bandeau générique DashboardBandeau (logo | onglets | capsule utilisateur)
- Capsule: icône rôle (admin/gestionnaire/parent/AM) + Prénom Nom + menu (email avec icône, Profil, Paramètres, Déconnexion)
- Migration admin, gestionnaire, parent, AM vers DashboardBandeau
- Écran AM (page blanche), route /am-dashboard
- Routes /privacy et /legal, footer avec context.push
- AppUser.fromJson: id/email/role null-safe
- Suppression DashboardAppBarAdmin et dashboard_app_bar.dart

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

frontend/lib/screens/home/parent_screen/ParentDashboardScreen.dart

@@ -1,11 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:p_tits_pas/controllers/parent_dashboard_controller.dart';
+import 'package:p_tits_pas/models/user.dart';
+import 'package:p_tits_pas/services/auth_service.dart';
 import 'package:p_tits_pas/services/dashboardService.dart';
 import 'package:p_tits_pas/widgets/app_footer.dart';
-import 'package:p_tits_pas/widgets/dashbord_parent/app_layout.dart';
 import 'package:p_tits_pas/widgets/dashbord_parent/children_sidebar.dart';
-import 'package:p_tits_pas/widgets/dashbord_parent/dashboard_app_bar.dart';
 import 'package:p_tits_pas/widgets/dashbord_parent/wid_dashbord.dart';
+import 'package:p_tits_pas/widgets/dashboard/dashboard_bandeau.dart';
 import 'package:p_tits_pas/widgets/main_content_area.dart';
 import 'package:p_tits_pas/widgets/messaging_sidebar.dart';
 import 'package:provider/provider.dart';
@@ -19,6 +20,7 @@ class ParentDashboardScreen extends StatefulWidget {
 
 class _ParentDashboardScreenState extends State<ParentDashboardScreen> {
   int selectedIndex = 0;
+  AppUser? _user;
 
   void onTabChange(int index) {
     setState(() {
@@ -29,12 +31,18 @@ class _ParentDashboardScreenState extends State<ParentDashboardScreen> {
   @override
   void initState() {
     super.initState();
+    _loadUser();
     // Initialiser les données du dashboard
     WidgetsBinding.instance.addPostFrameCallback((_) {
       context.read<ParentDashboardController>().initDashboard();
     });
   }
 
+  Future<void> _loadUser() async {
+    final user = await AuthService.getCurrentUser();
+    if (mounted) setState(() => _user = user);
+  }
+
   Widget _getBody() {
     switch (selectedIndex) {
       case 0:
@@ -53,29 +61,43 @@ class _ParentDashboardScreenState extends State<ParentDashboardScreen> {
     return ChangeNotifierProvider(
       create: (context) => ParentDashboardController(DashboardService())..initDashboard(),
       child: Scaffold(
-        appBar: PreferredSize(preferredSize: const Size.fromHeight(60.0),
-        child: Container(
-          decoration: BoxDecoration(
-            border: Border(
-              bottom: BorderSide(color: Colors.grey.shade300),
-            ),
-          ),
-          child: DashboardAppBar(
-            selectedIndex: selectedIndex,
-            onTabChange: onTabChange,
+        appBar: PreferredSize(
+          preferredSize: const Size.fromHeight(60.0),
+          child: DashboardBandeau(
+            tabItems: const [
+              DashboardTabItem(label: 'Mon tableau de bord'),
+              DashboardTabItem(label: 'Trouver une nounou'),
+              DashboardTabItem(label: 'Paramètres'),
+            ],
+            selectedTabIndex: selectedIndex,
+            onTabSelected: onTabChange,
+            userDisplayName: _user?.fullName.isNotEmpty == true
+                ? _user!.fullName
+                : 'Parent',
+            userEmail: _user?.email,
+            userRole: _user?.role,
+            onProfileTap: () {
+              ScaffoldMessenger.of(context).showSnackBar(
+                const SnackBar(
+                    content: Text('Modification du profil – à venir')),
+              );
+            },
+            onSettingsTap: () {
+              ScaffoldMessenger.of(context).showSnackBar(
+                const SnackBar(content: Text('Paramètres – à venir')),
+              );
+            },
+            onLogout: () {},
+            showLogoutConfirmation: true,
           ),
         ),
-      ),
       body: Column(
         children: [
-          Expanded (child: _getBody(),
-          ),
+          Expanded(child: _getBody()),
           const AppFooter(),
         ],
       ),
-      )
-      // body: _buildResponsiveBody(context, controller),
-      //  footer: const AppFooter(),
+    ),
     );
   }