feat(flutter): 增加 debug 服务地址编辑器

lib/pages/discover/discover_view.dart

@@ -18,6 +18,7 @@ import '../../core/theme/app_theme.dart';
 import '../../core/widgets/app_bottom_nav.dart';
 import '../../core/widgets/app_pull_to_refresh.dart';
 import '../../core/widgets/catalog_debug_info.dart';
+import '../../core/widgets/catalog_endpoint_editor.dart';
 import '../../core/widgets/empty_state.dart';
 import '../../l10n/app_localizations.dart';
 import '../filter/filter_page.dart';
@@ -258,7 +259,11 @@ class _DiscoverPageState extends State<DiscoverPage> {
             actionLabel: l10n.retry,
             onAction: () => unawaited(_retryCategories(categories)),
             footer: kDebugMode
-                ? CatalogDebugInfo(error: categories.debugError ?? error)
+                ? CatalogDebugInfo(
+                    error: categories.debugError ?? error,
+                    onEditEndpoint: () =>
+                        unawaited(_editCategoriesEndpoint(categories)),
+                  )
                 : null,
           ),
         ),
@@ -518,6 +523,10 @@ class _DiscoverPageState extends State<DiscoverPage> {
     return retryCatalogLoad(reload: categories.load);
   }
 
+  Future<void> _editCategoriesEndpoint(CategoryController categories) {
+    return showCatalogEndpointEditor(context, reload: categories.load);
+  }
+
   void _act(DiscoverPageAction action) {
     logic.act(
       context,