refactor: 重构前端 UI 组件与后端 AgentScope schemas

apps/lib/features/settings/ui/screens/edit_profile_screen.dart

@@ -3,6 +3,7 @@ import 'package:go_router/go_router.dart';
 import '../../../../core/theme/design_tokens.dart';
 import '../../../../core/di/injection.dart';
 import '../../../../shared/widgets/app_button.dart';
+import '../../../../shared/widgets/page_header.dart' as widgets;
 import '../../../../shared/widgets/toast/toast.dart';
 import '../../../../shared/widgets/toast/toast_type.dart';
 import '../../../users/data/models/user_response.dart';
@@ -161,23 +162,7 @@ class _EditProfileScreenState extends State<EditProfileScreen> {
         padding: const EdgeInsets.symmetric(horizontal: 20),
         child: Row(
           children: [
-            GestureDetector(
-              onTap: () => context.pop(),
-              child: Container(
-                width: 36,
-                height: 36,
-                decoration: BoxDecoration(
-                  color: const Color(0xFFF8FAFF),
-                  borderRadius: BorderRadius.circular(18),
-                  border: Border.all(color: const Color(0xFFDEE7F6)),
-                ),
-                child: const Icon(
-                  Icons.chevron_left,
-                  size: 18,
-                  color: Color(0xFF334155),
-                ),
-              ),
-            ),
+            widgets.BackButton(onPressed: () => context.pop()),
             const SizedBox(width: 12),
             const Text(
               '编辑资料',