修复部分商品无轮播图问题

app/services/ThirdParty/Taobao/ProductService.php

@@ -130,7 +130,7 @@ class ProductService extends TaobaoService
                     'lowestCouponPrice' => $data['price_promotion_info']['final_promotion_price'],
                     // 划线价 促销信息-销售价格，无促销时等于一口价，有促销时为促销价。若属于预售商品，付定金时间内，在线售卖价=预售价 ?? 商品信息-一口价通常显示为划线价
                     'price' => $data['price_promotion_info']['zk_final_price'] ?? $data['price_promotion_info']['reserve_price'],
-                    'imageList' => $data['item_basic_info']['small_images']['string'],
+                    'imageList' => $data['item_basic_info']['small_images']['string'] ?? [$data['item_basic_info']['pict_url'] ?? ''],
                     'materialUrl' => $coupon_share_url,
                     // 最低 实际价格 促销信息-预估到手价(元)。若属于预售商品，付定金时间内，预估到手价价=定金+尾款的预估到手价
                     'commission_' => $data['price_promotion_info']['final_promotion_price'],