修改售空状态库存显示为已售：xx件

pages/index/index.wxml

@@ -188,6 +188,7 @@
                   <view class="status-tag source-{{item.sourceType === '三方认证' ? 'third' : (item.sourceType === '平台货源' ? 'platform' : 'unverified')}}">{{item.sourceType || ''}}</view>
                   <view wx:if="{{item.status !== 'sold_out'}}" class="status-tag negotiate-{{item.negotiateStatus === '可议价' ? 'yes' : 'no'}}" style="width: 70rpx; display: inline-block; box-sizing: border-box">{{item.negotiateStatus}}</view>
                   <view wx:if="{{item.status !== 'sold_out'}}" class="status-tag item-count">库存：{{item.totalStock && item.totalStock !== '充足' ? item.totalStock + '件' : (item.totalStock || '充足')}}</view>
+                  <view wx:if="{{item.status === 'sold_out'}}" class="status-tag item-count">已售：{{item.originalTotalStock || 0}}件</view>
                 </view>
                 <view class="product-meta">
                   <text class="sales-count">已有{{item.reservedCount || 0}}人收藏</text>