feat(front): implement AM dashboard shell with 3 columns (#169)

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

frontend/lib/screens/am/am_dashboard_screen.dart

@@ -1,11 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:p_tits_pas/models/user.dart';
 import 'package:p_tits_pas/services/auth_service.dart';
-import 'package:p_tits_pas/widgets/app_footer.dart';
-import 'package:p_tits_pas/widgets/dashboard/dashboard_bandeau.dart';
+import 'package:p_tits_pas/widgets/quotidien/quotidien_shell.dart';
+import 'package:p_tits_pas/widgets/quotidien/quotidien_theme.dart';
 
-/// Dashboard assistante maternelle – page blanche avec bandeau générique.
-/// Contenu détaillé à venir.
+/// Dashboard assistante maternelle – coquille 3 colonnes quotidien (#169).
+/// Colonne gauche : sélecteur de couple enfant–parent(s) (à venir #170).
+/// Métier cartes / blog / messagerie : tickets C/D/E.
 class AmDashboardScreen extends StatefulWidget {
   const AmDashboardScreen({super.key});
 
@@ -14,7 +15,7 @@ class AmDashboardScreen extends StatefulWidget {
 }
 
 class _AmDashboardScreenState extends State<AmDashboardScreen> {
-  int selectedTabIndex = 0;
+  QuotidienNavSection _section = QuotidienNavSection.liaison;
   AppUser? _user;
 
   @override
@@ -28,51 +29,58 @@ class _AmDashboardScreenState extends State<AmDashboardScreen> {
     if (mounted) setState(() => _user = user);
   }
 
+  String get _displayName {
+    final n = _user?.fullName.trim() ?? '';
+    if (n.isNotEmpty) return n;
+    final email = _user?.email.trim() ?? '';
+    if (email.isNotEmpty) return email.split('@').first;
+    return 'Assistante maternelle';
+  }
+
+  void _soon(String label) {
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(content: Text('$label — à venir')),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: PreferredSize(
-        preferredSize: const Size.fromHeight(60.0),
-        child: DashboardBandeau(
-          tabItems: const [
-            DashboardTabItem(label: 'Mon tableau de bord'),
-            DashboardTabItem(label: 'Paramètres'),
-          ],
-          selectedTabIndex: selectedTabIndex,
-          onTabSelected: (index) => setState(() => selectedTabIndex = index),
-          userDisplayName: _user?.fullName.isNotEmpty == true
-              ? _user!.fullName
-              : 'Assistante maternelle',
-          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,
-        ),
+    return QuotidienShell(
+      selectedSection: _section,
+      onSectionSelected: (s) => setState(() => _section = s),
+      userDisplayName: _displayName,
+      userEmail: _user?.email,
+      onProfileTap: () => _soon('Profil'),
+      onSettingsTap: () => _soon('Paramètres'),
+      // L'AM n'a pas de bouton "Recherche AM" dans le bandeau
+      onSearchAmTap: null,
+      leftColumn: const QuotidienColumnPlaceholder(
+        title: 'Cartes',
+        subtitle:
+            'Couple enfant–parent(s) et flux de cartes\n(à brancher — tickets #170 / #174).',
+        icon: Icons.style_outlined,
       ),
-      body: Column(
-        children: [
-          Expanded(
-            child: Center(
-              child: Text(
-                'Dashboard AM – à venir',
-                style: Theme.of(context).textTheme.titleLarge,
-              ),
-            ),
-          ),
-          const AppFooter(),
-        ],
+      centerColumn: const QuotidienColumnPlaceholder(
+        title: 'Blog',
+        subtitle:
+            'Fil du quotidien (affichage par défaut)\n(à brancher — ticket #179).',
+        icon: Icons.auto_stories_outlined,
+      ),
+      rightColumn: const QuotidienColumnPlaceholder(
+        title: 'Messagerie',
+        subtitle:
+            'Mess. Parents · Mess. RPE\n(à brancher — ticket #185).',
+        icon: Icons.chat_bubble_outline,
+      ),
+      agendaBody: const QuotidienStubPage(
+        title: 'Agenda',
+        message: 'Agenda — contenu à venir (stub #187).',
+      ),
+      contratBody: const QuotidienStubPage(
+        title: 'Contrat',
+        message: 'Contrat — contenu à venir (stub #187).',
       ),
     );
   }
 }
+

frontend/lib/widgets/quotidien/quotidien_bandeau.dart

@@ -183,15 +183,16 @@ class _UserMenu extends StatelessWidget {
             title: Text('Profil'),
           ),
         ),
-        const PopupMenuItem(
-          value: 'search_am',
-          child: ListTile(
-            dense: true,
-            contentPadding: EdgeInsets.zero,
-            leading: Icon(Icons.search, size: 20),
-            title: Text('Recherche AM'),
+        if (onSearchAmTap != null)
+          const PopupMenuItem(
+            value: 'search_am',
+            child: ListTile(
+              dense: true,
+              contentPadding: EdgeInsets.zero,
+              leading: Icon(Icons.search, size: 20),
+              title: Text('Recherche AM'),
+            ),
           ),
-        ),
         const PopupMenuItem(
           value: 'settings',
           child: ListTile(