接入编号讲解后端查询

- 使用真实讲解编号解析接口替换本地演示映射
- 成功后复用现有详情页并自动播放讲解
- 增加查询状态、业务错误提示和相关测试

Made-with: Proma

src/pages/exhibit/detail.vue

@@ -246,6 +246,7 @@ const detailTextLoadedByLanguage = ref<Record<AudioLanguage, boolean>>({
   'en-US': false
 })
 const shouldUseHostNavigation = computed(() => isEmbeddedInWechatMiniProgram())
+const shouldAutoplayOnEntry = ref(false)
 
 const isAudioLanguage = (value: unknown): value is AudioLanguage => (
   value === 'zh-CN' || value === 'yue-HK' || value === 'en-US'
@@ -531,6 +532,8 @@ onLoad(async (options: any = {}) => {
     return
   }
   const rawLang = Array.isArray(options.lang) ? options.lang[0] : options.lang
+  const rawAutoplay = Array.isArray(options.autoplay) ? options.autoplay[0] : options.autoplay
+  shouldAutoplayOnEntry.value = rawAutoplay === '1' || rawAutoplay === 'true'
   const lang = typeof rawLang === 'string'
     ? normalizeGuideAudioLanguage(rawLang)
     : 'zh-CN'
@@ -545,6 +548,18 @@ onLoad(async (options: any = {}) => {
       poiId: Array.isArray(options.poiId) ? options.poiId[0] : options.poiId
     }
     await loadExplainDetail(detailEntryRequest.value, lang)
+    if (shouldAutoplayOnEntry.value) {
+      shouldAutoplayOnEntry.value = false
+      try {
+        await handlePlayAudio()
+      } catch (error) {
+        console.warn('自动播放讲解失败，将等待用户手动播放:', error)
+        uni.showToast({
+          title: '点击底部播放键开始讲解',
+          icon: 'none'
+        })
+      }
+    }
   } catch (error) {
     console.error('讲解详情加载失败:', error)
     detailState.value = 'error'