feat(distribution): 分站首页改为联名标题并同步手机轮播

首页主标题显示为站名×大锤商行，手机端使用与电脑端相同的分站自定义海报。

Co-authored-by: Cursor <cursoragent@cursor.com>

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

@@ -60,7 +60,7 @@ import {
   getListingResources,
 } from '@/shared/utils/listingDisplay'
 import { buildMobileHomeListSignature, useMobileHomeCacheStore } from '@/stores/mobileHomeCache'
-import { useDistributionSiteStore } from '@/stores/distributionSite'
+import { mapDistributionHomeBanners, useDistributionSiteStore } from '@/stores/distributionSite'
 import { useSessionStore } from '@/stores/session'
 
 const router = useRouter()
@@ -97,6 +97,12 @@ const displayAnnouncements = computed(() => {
   return announcements.value
 })
 const bannerSlides = ref<HomeBannerSlide[]>(defaultHomeBanners)
+const displayBanners = computed<HomeBannerSlide[]>(() => {
+  if (siteStore.isDistribution && siteStore.banners.length > 0) {
+    return mapDistributionHomeBanners(siteStore.banners, siteStore.siteName)
+  }
+  return bannerSlides.value
+})
 const awRecycle = ref<AWRecycleConfig>({ ...defaultAWRecycleConfig })
 const awRecyclePreviewVisible = ref(false)
 const cooperationFeedback = ref<CooperationFeedbackConfig>({ ...defaultCooperationFeedbackConfig })
@@ -507,7 +513,7 @@ function openCooperationFeedback() {
 function openBannerPreview(slide: HomeBannerSlide) {
   const url = slide.image_url?.trim()
   if (!url) return
-  const images = bannerSlides.value
+  const images = displayBanners.value
     .map(item => item.image_url?.trim() || '')
     .filter((item): item is string => Boolean(item))
   const startPosition = images.indexOf(url)
@@ -903,14 +909,14 @@ if (!restoreHomeConfigFromCache()) {
           <div v-if="siteStore.isDistribution" class="mobile-dist-card">
             <div class="dist-card-top">
               <span class="dist-card-badge">{{ siteStore.storefrontText.hero_badge }}</span>
-              <strong class="dist-card-name">{{ siteStore.siteName }}</strong>
+              <strong class="dist-card-name">{{ siteStore.coBrandName }}</strong>
             </div>
             <p class="dist-card-sub">{{ siteStore.storefrontText.card_sub }}</p>
           </div>
 
           <!-- Banner 轮播 -->
           <van-swipe class="banner-swipe" :autoplay="3600" lazy-render>
-            <van-swipe-item v-for="slide in bannerSlides" :key="slide.title || slide.image_url">
+            <van-swipe-item v-for="slide in displayBanners" :key="slide.image_url || slide.title">
               <div
                 class="mobile-banner"
                 :class="[