新增首页 AW炫彩回收入口，支持后台配置展示图

首页第三入口点击查看回收说明图；配置项 mobile.aw_recycle 可配标题/图片；aw-recycle 走公开文件链路，首页鉴权预览兼容旧私有地址。

frontend/src/features/listings/views/MobileHomeView.vue

@@ -1,7 +1,6 @@
 <script setup lang="ts">
 import { computed, nextTick, onBeforeUnmount, onMounted, ref, watch } from 'vue'
 import { onBeforeRouteLeave, RouterLink, useRoute, useRouter } from 'vue-router'
-import { showToast } from 'vant'
 import MobileBottomNav from '@/components/MobileBottomNav.vue'
 import { ensureSupportChat, resolveSupportScene } from '@/features/chats/api/chats'
 import { formatCent, formatMoney } from '@/shared/utils/money'
@@ -15,11 +14,15 @@ import {
   type PublicListingQuery,
 } from '@/features/listings/api/listings'
 import {
+  defaultAWRecycleConfig,
   defaultHomeAnnouncements,
   defaultHomeBanners,
   fetchMobileHomeConfig,
+  type AWRecycleConfig,
   type HomeBannerSlide,
 } from '@/features/listings/api/homeConfig'
+import { showImagePreview, showToast } from 'vant'
+import { fetchFileBlobByURL } from '@/shared/api/files'
 import MobileHomeFilterSheet, { type FilterSection } from './MobileHomeFilterSheet.vue'
 import {
   clearStoredHomeQuery,
@@ -76,6 +79,7 @@ const refreshing = ref(false)
 const searchValue = ref('')
 const announcements = ref<string[]>(defaultHomeAnnouncements)
 const bannerSlides = ref<HomeBannerSlide[]>(defaultHomeBanners)
+const awRecycle = ref<AWRecycleConfig>({ ...defaultAWRecycleConfig })
 const supportLoading = ref(false)
 const showBackTop = ref(false)
 const mobilePageSize = 10
@@ -457,6 +461,7 @@ async function loadHomeConfig() {
     const config = await fetchMobileHomeConfig()
     announcements.value = config.announcements
     bannerSlides.value = config.banners
+    awRecycle.value = config.aw_recycle
     publishOptions.value = config.publish_options
     homeCache.saveHomeConfig({
       announcements: config.announcements,
@@ -466,10 +471,39 @@ async function loadHomeConfig() {
   } catch {
     announcements.value = defaultHomeAnnouncements
     bannerSlides.value = defaultHomeBanners
+    awRecycle.value = { ...defaultAWRecycleConfig }
     publishOptions.value = emptyListingPublishOptions
   }
 }
 
+async function openAWRecycle() {
+  const source = awRecycle.value.image_url
+  if (!source) {
+    showToast({ message: '回收说明图片尚未配置', icon: 'warning-o' })
+    return
+  }
+  try {
+    // 私有 /api/files/object 需带鉴权拉取；公开 /api/public/files 可直接预览
+    let previewURL = source
+    if (
+      source.includes('/api/files/object') ||
+      source.includes('/api/admin/files/object')
+    ) {
+      const blob = await fetchFileBlobByURL(source)
+      previewURL = URL.createObjectURL(blob)
+    }
+    showImagePreview({
+      images: [previewURL],
+      closeable: true,
+    })
+  } catch {
+    showToast({
+      message: '图片加载失败，请在后台重新上传（需使用公开图）',
+      icon: 'cross',
+    })
+  }
+}
+
 async function onRefresh() {
   refreshing.value = true
   try {
@@ -477,6 +511,7 @@ async function onRefresh() {
     const [, nextHomeConfig] = await Promise.all([loadListings(true), fetchMobileHomeConfig()])
     announcements.value = nextHomeConfig.announcements
     bannerSlides.value = nextHomeConfig.banners
+    awRecycle.value = nextHomeConfig.aw_recycle
     publishOptions.value = nextHomeConfig.publish_options
     homeCache.saveHomeConfig({
       announcements: nextHomeConfig.announcements,
@@ -842,6 +877,15 @@ syncMobileHomeQuery()
               <small>选购商品 · 一键找客服</small>
               <em class="biz-entry-badge">NEW</em>
             </RouterLink>
+            <button
+              v-if="awRecycle.enabled"
+              type="button"
+              class="biz-entry aw-recycle"
+              @click="openAWRecycle"
+            >
+              <strong>{{ awRecycle.title }}</strong>
+              <small>{{ awRecycle.subtitle }}</small>
+            </button>
           </div>
 
           <div class="zone-strip" aria-label="账号专区">