feat(flutter): 增加 debug 运行时服务器地址设置

lib/main.dart

@@ -2,10 +2,13 @@
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+
 import 'app.dart';
+import 'core/config/server_endpoint.dart';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
+  await ServerEndpoint.load();
   runApp(const LumaDramaApp());
 }