feat(ui):登录进入app前向原生同步信息的部分代码不用await

@@ -47,7 +47,7 @@ abstract final class AppBootstrap {
     // `UserPreferencesStorage.init` runs before GetX dependencies exist. Sync
     // here so every cold start invokes native `updateLoginInfo` after the
     // PlatformHostApi and HealthRawDataCoreService are ready.
-    await userPreferencesStorage.syncLoginInfoToNative();
+    unawaited(userPreferencesStorage.syncLoginInfoToNative());
 
     NativeHealthDataUpdateBridge.initialize();
 
@@ -88,7 +88,7 @@ abstract final class AppBootstrap {
       localStorage: local,
     ).dependencies();
 
-    await userPreferencesStorage.syncLoginInfoToNative();
+    unawaited(userPreferencesStorage.syncLoginInfoToNative());
 
     NativeHealthDataUpdateBridge.initialize();
     // 2. 后台无 UI，不需要初始化全局 Loading 弹窗

@@ -641,7 +641,9 @@ class LoginController extends GetxController {
       try {
         if (Get.isRegistered<AppEnvironmentConfig>()) {
           var env = Get.find<AppEnvironmentConfig>();
-          await AppPlatformHostApi().updateLoginInfo(
+          unawaited(
+            AppPlatformHostApi()
+                .updateLoginInfo(
               jsonEncode(UserPreferences(
                 accessToken: accessToken,
                 meUserInfo: me,
@@ -650,7 +652,12 @@ class LoginController extends GetxController {
                     ? UserPreferencesVipInfo.fromVipInfo(vip)
                     : null,
               )),
-              env.serverBaseUrl);
+              env.serverBaseUrl,
+            )
+                .catchError((Object error, StackTrace stackTrace) {
+              AppLogger.e('Native login info sync failed', error, stackTrace);
+            }),
+          );
         }
       } on Exception catch (e) {
         AppLogger.e(e);

+import 'dart:async';
 import 'dart:convert';
 
 import 'package:doublefeel_flutter/core/config/app_environment_config.dart';
@@ -144,7 +145,9 @@ class UserPreferencesStorage {
       vipInfo: vip != null ? UserPreferencesVipInfo.fromVipInfo(vip) : null,
     );
     await _persist(userInfo);
-    await _syncLoginInfoToNative(userInfo: userInfo);
+    // Native login/health database synchronization is best effort and can
+    // trigger expensive platform work. Do not hold the login transition for it.
+    unawaited(_syncLoginInfoToNative(userInfo: userInfo));
   }
 
   Future<void> clearPartnerUserInfo() async {