移除不必要的 localStorage 设置和导航逻辑

src/pages/U1/u1.tsx

@@ -16,8 +16,8 @@ const U1: React.FC = () => {
   const timerRef = useRef<number | null>(null);
 
   const handleStart = () => {
-    localStorage.setItem("lastIdCardNo", "31010919571209004X");
-    navigate("/u2");
+    // localStorage.setItem("lastIdCardNo", "31010919571209004X");
+    // navigate("/u2");
     if (reading) return; // 避免重复点击
     setReading(true);
     // 启动后端监听；如果启动失败立即恢复 UI 状态
@@ -64,7 +64,7 @@ const U1: React.FC = () => {
         "info",
         `Read IDCard success: ${payload.name} ${payload.id_card_no}`
       );
-      // 成功：清理定时器，停止监听，跳转并传递身份证号
+      // 成功：清理定时器，停止监听
       if (timerRef.current) {
         clearTimeout(timerRef.current);
         timerRef.current = null;