feat: 添加账号删除功能

apps/lib/features/settings/presentation/screens/settings_screen.dart

@@ -5,6 +5,7 @@ import '../../../../shared/theme/design_tokens.dart';
 import '../../../../shared/widgets/app_modal_dialog.dart';
 import '../../../../shared/widgets/gua_icon.dart';
 import '../../data/models/profile_settings.dart';
+import 'account_delete_screen.dart';
 import '../widgets/settings_section_widgets.dart';
 import 'coin_center_screen.dart';
 import 'general_settings_screen.dart';
@@ -22,6 +23,7 @@ class SettingsScreen extends StatefulWidget {
     required this.onSettingsChanged,
     required this.onUploadAvatar,
     required this.onLogout,
+    required this.onDeleteAccount,
     required this.onSaveProfile,
   });
 
@@ -32,6 +34,7 @@ class SettingsScreen extends StatefulWidget {
   final Future<void> Function(ProfileSettingsV1 settings) onSettingsChanged;
   final Future<ProfileSettingsV1> Function(String filePath) onUploadAvatar;
   final Future<void> Function() onLogout;
+  final Future<void> Function() onDeleteAccount;
   final Future<ProfileSettingsV1> Function(ProfileSettingsV1 updated)
   onSaveProfile;
 
@@ -119,6 +122,18 @@ class _SettingsScreenState extends State<SettingsScreen> {
               ),
             ],
           ),
+          SettingsGroupCard(
+            children: [
+              SettingsMenuTile(
+                icon: Icons.person_rounded,
+                title: l10n.settingsAccountAndDataTitle,
+                tint: colors.primary,
+                background: colors.surfaceContainerHighest,
+                showDivider: false,
+                onTap: _openAccountDelete,
+              ),
+            ],
+          ),
           const SizedBox(height: AppSpacing.xl),
           FilledButton(
             onPressed: _confirmLogout,
@@ -194,6 +209,23 @@ class _SettingsScreenState extends State<SettingsScreen> {
     );
   }
 
+  Future<void> _openAccountDelete() async {
+    final deleted = await Navigator.of(context).push<bool>(
+      MaterialPageRoute<bool>(
+        builder: (_) =>
+            AccountDeleteScreen(onDeleteAccount: widget.onDeleteAccount),
+      ),
+    );
+    if (deleted != true) {
+      return;
+    }
+    await widget.onLogout();
+    if (!mounted) {
+      return;
+    }
+    Navigator.of(context).popUntil((route) => route.isFirst);
+  }
+
   Future<void> _confirmLogout() async {
     final l10n = AppLocalizations.of(context)!;
     final confirmed = await showDialog<bool>(