perf(home): 冷启动提前拉取首页数据

lib/main.dart

@@ -13,6 +13,6 @@ Future<void> main() async {
     SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]),
     ServerEndpoint.load(),
   ]);
-  await AppConfig.probeAndApplyBaseUrl();
+  AppConfig.ready = AppConfig.probeAndApplyBaseUrl();
   runApp(const LumaDramaApp());
 }