fix(flutter): 增加首页服务器设置并更新真机默认地址

lib/pages/home/home_view.dart

@@ -15,6 +15,7 @@ import '../../core/theme/app_colors.dart';
 import '../../core/theme/app_theme.dart';
 import '../../core/widgets/auth_gate.dart';
 import '../../core/widgets/empty_state.dart';
+import '../../core/widgets/server_endpoint_dialog.dart';
 import '../../l10n/app_localizations.dart';
 import '../discover/discover_view.dart';
 import '../mine/mine_view.dart';
@@ -50,28 +51,9 @@ class HomePage extends StatelessWidget {
     if (catalog.error != null) {
       return Scaffold(
         backgroundColor: Colors.black,
-        body: Center(
-          child: Column(
-            mainAxisSize: MainAxisSize.min,
-            children: [
-              const Icon(
-                Icons.error_outline_rounded,
-                color: Colors.white70,
-                size: 40,
-              ),
-              const SizedBox(height: 12),
-              Text(l10n.catalogError),
-              const SizedBox(height: 12),
-              FilledButton(onPressed: catalog.load, child: Text(l10n.retry)),
-              if (kDebugMode) ...[
-                const SizedBox(height: 16),
-                Text(
-                  AppConfig.apiBaseUrl,
-                  style: const TextStyle(fontSize: 12, color: Colors.white54),
-                ),
-              ],
-            ],
-          ),
+        body: HomeFailureView(
+          onRetry: catalog.load,
+          showDebugTools: kDebugMode,
         ),
       );
     }
@@ -96,6 +78,53 @@ class HomePage extends StatelessWidget {
   }
 }
 
+/// Home catalog failure with optional debug-only endpoint controls.
+class HomeFailureView extends StatelessWidget {
+  const HomeFailureView({
+    super.key,
+    required this.onRetry,
+    this.showDebugTools = kDebugMode,
+  });
+
+  final VoidCallback onRetry;
+  final bool showDebugTools;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+    return Center(
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          const Icon(
+            Icons.error_outline_rounded,
+            color: Colors.white70,
+            size: 40,
+          ),
+          const SizedBox(height: 12),
+          Text(l10n.catalogError),
+          const SizedBox(height: 12),
+          FilledButton(onPressed: onRetry, child: Text(l10n.retry)),
+          if (showDebugTools) ...[
+            const SizedBox(height: 16),
+            Text(
+              AppConfig.apiBaseUrl,
+              style: const TextStyle(fontSize: 12, color: Colors.white54),
+            ),
+            const SizedBox(height: 8),
+            OutlinedButton.icon(
+              key: const Key('home-server-settings'),
+              onPressed: () => showServerEndpointDialog(context, l10n),
+              icon: const Icon(Icons.dns_outlined),
+              label: Text(l10n.serverSettings),
+            ),
+          ],
+        ],
+      ),
+    );
+  }
+}
+
 /// The three primary destinations share a single route and keep their state.
 class _HomeTabs extends StatefulWidget {
   const _HomeTabs({super.key, required this.dramas});