fix: 修复记录页登录状态检测和重试逻辑

pages/records/records.wxml

@@ -20,7 +20,7 @@
   </view>
 
   <!-- 记录列表 -->
-  <view class="record-list" wx:if="{{!loading && filteredRecords.length > 0}}">
+  <view class="record-list" wx:if="{{!loading && !loginFailed && filteredRecords.length > 0}}">
     <view class="record-card" wx:for="{{filteredRecords}}" wx:key="_id">
       <view class="record-header">
         <view wx:if="{{item.status === 'approved'}}" class="qrcode-btn" bindtap="showQrcode" data-id="{{item._id}}">
@@ -70,8 +70,15 @@
     <text class="empty-text">加载中...</text>
   </view>
 
+  <!-- 登录失败 -->
+  <view class="empty" wx:if="{{loginFailed}}">
+    <text class="empty-icon">⚠️</text>
+    <text class="empty-text">登录失败，请重试</text>
+    <view class="empty-btn" bindtap="onRetry">重新登录</view>
+  </view>
+
   <!-- 空状态 -->
-  <view class="empty" wx:if="{{!loading && filteredRecords.length === 0}}">
+  <view class="empty" wx:if="{{!loading && !loginFailed && filteredRecords.length === 0}}">
     <text class="empty-icon">📭</text>
     <text class="empty-text">暂无预约记录</text>
     <view class="empty-btn" bindtap="goAppointment">去预约</view>