feat: add customer service chat, optimize case and homepage, fix api proxy

这一提交完成了多项功能升级与优化：
1.  新增全局浮动客服组件，集成腾讯云TRTC聊天能力并添加错误格式化工具
2.  新增图片资源并调整部分静态文件结构
3.  优化案例页面：重构筛选逻辑、新增空状态处理、添加加载更多功能
4.  优化首页布局：修复统计数字动画、调整移动端适配样式、优化轮播逻辑
5.  重构官方内容获取工具：添加缓存机制、优化媒体资源处理
6.  优化API代理配置，移除默认本地代理并新增环境变量配置
7.  新增页面数据恢复刷新逻辑，优化页面交互体验
8.  修复按钮组件冗余代码，调整头部导航移动端样式

pages/insights/index.vue

@@ -5,9 +5,11 @@ import SiteFooter from '~/components/site/SiteFooter.vue'
 const {
   ALL_LABEL,
   LATEST_LABEL,
+  buildMediaMap,
   bySortAndTime,
-  categoryList,
+  fetchPublicCategories,
   fetchPublicContent,
+  fetchPublicMediaAsset,
   normalizeArticle,
   normalizeWhitepaper
 } = useOfficialContent()
@@ -17,17 +19,30 @@ const visibleCount = ref(4)
 const { openConsultation } = useConsultation()
 
 const { data: pageData } = await useAsyncData('public-insights', async () => {
-  const [articleRows, whitepaperRows] = await Promise.all([
+  const [articleRows, whitepaperRows, categories] = await Promise.all([
     fetchPublicContent('ARTICLE'),
-    fetchPublicContent('WHITEPAPER')
+    fetchPublicContent('WHITEPAPER'),
+    fetchPublicCategories().catch(() => ({}))
   ])
+  const whitepaperAssetIds = Array.from(
+    new Set(
+      whitepaperRows.flatMap((item) => [item.coverAssetId, item.documentAssetId]).filter(Boolean)
+    )
+  )
+  const whitepaperMediaRows = await Promise.all(
+    whitepaperAssetIds.map((id) => fetchPublicMediaAsset(id).catch(() => null))
+  )
+  const whitepaperMediaMap = buildMediaMap(whitepaperMediaRows.filter(Boolean))
 
   return {
     articles: articleRows.sort(bySortAndTime).map((item) => normalizeArticle(item, new Map())),
-    whitepapers: whitepaperRows.sort(bySortAndTime).map((item) => normalizeWhitepaper(item, new Map()))
+    whitepapers: whitepaperRows
+      .sort(bySortAndTime)
+      .map((item) => normalizeWhitepaper(item, whitepaperMediaMap)),
+    categories: categories || {}
   }
 })
-
+useRefreshNuxtDataOnResume('public-insights')
 const insights = computed(() => pageData.value?.articles || [])
 const whitepapers = computed(() => pageData.value?.whitepapers || [])
 const featuredInsight = computed(
@@ -36,7 +51,15 @@ const featuredInsight = computed(
 const featuredWhitepaper = computed(
   () => whitepapers.value.find((item) => item.isFeatured) || whitepapers.value[0] || null
 )
-const insightCategories = computed(() => categoryList(insights.value, 'category', [LATEST_LABEL]))
+const insightCategories = computed(() => [
+  ALL_LABEL,
+  LATEST_LABEL,
+  ...Array.from(
+    new Set(
+      (pageData.value?.categories?.insightCategories || []).map((item) => item.name).filter(Boolean)
+    )
+  )
+])
 
 useHead({
   title: '增长洞察｜大马棒·云途全域 GEO',
@@ -74,7 +97,7 @@ function requestWhitepaper(source) {
 
   openConsultation({
     title: featuredWhitepaper.value?.title || '获取行业白皮书',
-    need: featuredWhitepaper.value?.title || '行业白皮书',
+    need: '行业白皮书',
     source
   })
 }
@@ -227,9 +250,14 @@ function articleTags(article) {
         <div class="page-width whitepaper-grid">
           <div class="whitepaper-number"><span>REPORT</span><strong>2026</strong></div>
           <div class="whitepaper-copy">
-            <p>{{ featuredWhitepaper?.category || '行业白皮书' }}</p>
+            <!--            <p>{{ featuredWhitepaper?.category || '行业白皮书' }}</p>-->
+            <p>行业白皮书</p>
             <h2>{{ featuredWhitepaper?.title || 'AI 搜索与品牌增长观察' }}</h2>
-            <span>{{ featuredWhitepaper?.excerpt || '用户行为 · 内容信源 · 衡量框架 · 行业实践' }}</span>
+
+            <!--            <h2>AI 搜索与品牌增长观察</h2>-->
+            <span>{{
+              featuredWhitepaper?.excerpt || '用户行为 · 内容信源 · 衡量框架 · 行业实践'
+            }}</span>
           </div>
           <button type="button" @click="requestWhitepaper('增长洞察页白皮书')">
             {{ featuredWhitepaper?.cta || '获取白皮书' }} <AppIcon name="arrow-right" />