fix: correct scroll-view props and event bindings

update scroll-view component syntax in goods, ChatLongAnswer and Discovery pages

src/pages/goods/index.vue

@@ -5,7 +5,7 @@
       :backIconColor="navOpacity < 0.5 ? '#ffffff' : '#000000'" />
 
     <!-- 滚动区域 -->
-    <scroll-view class="content-wrapper" overflow-y-auto@scroll="handleScroll">
+    <scroll-view class="content-wrapper" scroll-y @scroll="handleScroll">
       <ImageSwiper :border-radius="0" :height="300" :images="goodsData.commodityPhotoList" thumbnailBottom="42px" />
 
       <view class="goods-content">