fix: 优化登录流程和余额查询逻辑

- 添加 fetchBalanceWithToken 支持登录时直接传入 token 查询余额
- AuthProvider 会话加载改为同步方式避免时序问题
- 添加调试日志便于排查问题

src/services/userService.ts

@@ -8,7 +8,7 @@ import { URL } from 'url';
 import * as vscode from 'vscode';
 import { getStrangeLoopApiUrl, getConfig } from '../config/settings';
 import type { UserInfoResponse, MembershipResponse, MultiMembershipVO, MembershipItemVO } from '../types/api';
-import { fetchBalance, getCachedBalance } from './creditsService';
+import { fetchBalanceWithToken, getCachedBalance } from './creditsService';
 
 /**
  * HTTP 请求选项
@@ -230,7 +230,7 @@ export async function onTokenReceived(token: string): Promise<UserInfo | null> {
     const [userInfo, membershipInfo, credits] = await Promise.all([
       getUserInfo(token),
       getMembershipInfo(token),
-      fetchBalance()
+      fetchBalanceWithToken(token)
     ]);
 
     if (!userInfo) {