feat: 添加登录失败处理及记录格式化功能

增加登录失败状态处理和重试机制
将记录格式化逻辑提取到工具函数
优化云数据库查询性能

pages/records/records.wxml

@@ -14,13 +14,16 @@
     <view class="tab {{currentTab === 'rejected' ? 'tab-active' : ''}}" bindtap="switchTab" data-tab="rejected">
       已拒绝
     </view>
+    <view class="tab {{currentTab === 'cancelled' ? 'tab-active' : ''}}" bindtap="switchTab" data-tab="cancelled">
+      已取消
+    </view>
   </view>
 
   <!-- 记录列表 -->
   <view class="record-list" wx:if="{{!loading && filteredRecords.length > 0}}">
     <view class="record-card" wx:for="{{filteredRecords}}" wx:key="_id">
       <view class="record-header">
-        <text class="record-id">{{item.id}}</text>
+        <text class="record-id">{{item._id}}</text>
         <view class="status-tag status-{{item.status}}">
           {{item.statusText}}
         </view>