fix(banner): add nginx uploads proxy and resolve absolute image url for banners

pwuniapp/pages/index/index.vue

@@ -17,7 +17,7 @@
       <swiper class="banner-swiper" circular autoplay interval="4000" indicator-dots indicator-color="rgba(255,255,255,0.3)" indicator-active-color="#6366F1">
         <swiper-item v-for="banner in banners" :key="banner.id" class="banner-item" @click="goToActivity(banner)">
           <view class="banner-card" :style="{ background: banner.bg || 'linear-gradient(135deg, #F43F5E 0%, #FB7185 100%)' }">
-            <image v-if="banner.image" class="banner-bg-img" :src="banner.image" mode="aspectFill" />
+            <image v-if="banner.image" class="banner-bg-img" :src="resolveBannerImage(banner.image)" mode="aspectFill" />
             <view v-if="banner.image" class="banner-overlay"></view>
             <view class="banner-content">
               <view class="banner-tag">{{ banner.tag || banner.badge || '热门陪伴' }}</view>
@@ -199,6 +199,14 @@ const fetchLiveNavCategories = async () => {
   }
 };
 
+const resolveBannerImage = (img) => {
+  if (!img) return '';
+  if (img.startsWith('/uploads/')) {
+    return `https://peiww.gynhc.com${img}`;
+  }
+  return img;
+};
+
 const resolveIcon = (icon) => {
   if (!icon) return ICONS.gridAll;
   if (ICONS[icon]) return ICONS[icon];