fix: 修复下架权限验证sellerId为空问题

- 添加 goodsDetail.seller?.userId 字段检查
- 解决creatorId为空导致无法下架的问题

pages/goods-update/goods-update.js

@@ -404,6 +404,18 @@ Page({
         if (res && res.code === 200 && res.data) {
           const product = res.data;
           
+          console.log('=== API返回的product原始数据 ===');
+          console.log('product对象的所有key:', Object.keys(product));
+          console.log('product中是否包含seller相关字段:');
+          console.log('  - sellerId:', product.sellerId);
+          console.log('  - seller_id:', product.seller_id);
+          console.log('  - seller:', product.seller);
+          console.log('  - userId:', product.userId);
+          console.log('  - user_id:', product.user_id);
+          console.log('  - creator:', product.creator);
+          console.log('  - 创建人ID:', product.creatorId);
+          console.log('  - 创建人ID:', product.creator_id);
+          
           // 只过滤hidden状态的商品
           if (product.status === 'hidden') {
             wx.showToast({
@@ -771,8 +783,8 @@ Page({
           // 隐藏编辑弹窗
           this.hideEditModal();
 
-          // 重新加载商品详情
-          this.loadGoodsDetail(productId);
+          // 重新加载商品详情，传入当前数据保持创建人和创建时间不变
+          this.loadGoodsDetail(productId, this.data.goodsDetail);
         } else {
           wx.showToast({
             title: '更新失败',
@@ -889,19 +901,23 @@ Page({
     console.log('准备下架商品 - 开始权限验证');
     
     const goodsDetail = this.data.goodsDetail;
-    const productSellerId = goodsDetail.sellerId || goodsDetail.product?.sellerId || '';
+    console.log('完整goodsDetail结构:', JSON.stringify(goodsDetail, null, 2));
+    
+    const productSellerId = goodsDetail.sellerId || goodsDetail.seller_id || goodsDetail.userId || goodsDetail.user_id || 
+                           goodsDetail.creatorId || goodsDetail.creator_id || goodsDetail.product?.sellerId || 
+                           goodsDetail.product?.seller_id || goodsDetail.product?.userId || goodsDetail.seller?.userId || '';
     const contactPhone = goodsDetail.contact_phone || goodsDetail.product_contact || '';
     const userPhone = getLocalPhoneNumber();
     const currentUserId = wx.getStorageSync('userId');
     
     console.log('当前用户手机号:', userPhone);
-    console.log('当前用户userId:', currentUserId);
-    console.log('商品sellerId(创建人):', productSellerId);
+    console.log('当前用户userId:', currentUserId, '(类型:', typeof currentUserId, ')');
+    console.log('商品sellerId(创建人):', productSellerId, '(类型:', typeof productSellerId, ')');
     console.log('商品联系人电话:', contactPhone);
     
     Promise.all([
       checkIsAdmin(userPhone),
-      Promise.resolve({ isCreator: currentUserId === productSellerId })
+      Promise.resolve({ isCreator: String(currentUserId) === String(productSellerId) })
     ])
       .then(([adminResult, creatorResult]) => {
         const isAdmin = adminResult;