feat: 修复用户登陆模块

src/components/Auth/WechatRegister.js

@@ -14,6 +14,7 @@ import { authService, WECHAT_STATUS, STATUS_MESSAGES } from "../../services/auth
 
 // 配置常量
 const POLL_INTERVAL = 2000; // 轮询间隔：2秒
+const BACKUP_POLL_INTERVAL = 3000; // 备用轮询间隔：3秒
 const QR_CODE_TIMEOUT = 300000; // 二维码超时：5分钟
 
 export default function WechatRegister() {
@@ -26,6 +27,7 @@ export default function WechatRegister() {
 
     // 使用 useRef 管理定时器，避免闭包问题和内存泄漏
     const pollIntervalRef = useRef(null);
+    const backupPollIntervalRef = useRef(null); // 备用轮询定时器
     const timeoutRef = useRef(null);
     const isMountedRef = useRef(true); // 追踪组件挂载状态
     const containerRef = useRef(null); // 容器DOM引用
@@ -67,6 +69,10 @@ export default function WechatRegister() {
             clearInterval(pollIntervalRef.current);
             pollIntervalRef.current = null;
         }
+        if (backupPollIntervalRef.current) {
+            clearInterval(backupPollIntervalRef.current);
+            backupPollIntervalRef.current = null;
+        }
         if (timeoutRef.current) {
             clearTimeout(timeoutRef.current);
             timeoutRef.current = null;
@@ -239,6 +245,40 @@ export default function WechatRegister() {
         };
     }, [clearTimers]);
 
+    /**
+     * 备用轮询机制 - 防止丢失状态
+     * 每3秒检查一次，仅在获取到二维码URL且状态为waiting时执行
+     */
+    useEffect(() => {
+        // 只在有auth_url、session_id且状态为waiting时启动备用轮询
+        if (wechatAuthUrl && wechatSessionId && wechatStatus === WECHAT_STATUS.WAITING) {
+            console.log('备用轮询：启动备用轮询机制');
+
+            backupPollIntervalRef.current = setInterval(() => {
+                try {
+                    if (wechatStatus === WECHAT_STATUS.WAITING && isMountedRef.current) {
+                        console.log('备用轮询：检查微信状态');
+                        // 添加 .catch() 静默处理异步错误，防止被 ErrorBoundary 捕获
+                        checkWechatStatus().catch(error => {
+                            console.warn('备用轮询检查失败（静默处理）:', error);
+                        });
+                    }
+                } catch (error) {
+                    // 捕获所有同步错误，防止被 ErrorBoundary 捕获
+                    console.warn('备用轮询执行出错（静默处理）:', error);
+                }
+            }, BACKUP_POLL_INTERVAL);
+        }
+
+        // 清理备用轮询
+        return () => {
+            if (backupPollIntervalRef.current) {
+                clearInterval(backupPollIntervalRef.current);
+                backupPollIntervalRef.current = null;
+            }
+        };
+    }, [wechatAuthUrl, wechatSessionId, wechatStatus, checkWechatStatus]);
+
     /**
      * 测量容器尺寸并计算缩放比例
      */
@@ -314,6 +354,7 @@ export default function WechatRegister() {
                     >
                         <iframe
                             src={wechatAuthUrl}
+                            title="微信扫码登录"
                             width="300"
                             height="350"
                             style={{