feat: 临时改造讲解页方案 B 链路

接入展厅列表、展厅讲解点分组生成临时业务单元，并迁移讲解详情播放正文到新接口链路。

src/pages/hall/detail.vue

@@ -203,8 +203,18 @@ const itemMeta = (exhibit: ExplainExhibitViewModel) => {
 }
 
 const handleExhibitClick = (exhibit: ExplainExhibitViewModel) => {
+  const params = new URLSearchParams({
+    id: exhibit.id,
+    tab: activeTopTab.value
+  })
+
+  if (exhibit.playTargetType && exhibit.playTargetId) {
+    params.set('targetType', exhibit.playTargetType)
+    params.set('targetId', exhibit.playTargetId)
+  }
+
   uni.navigateTo({
-    url: `/pages/exhibit/detail?id=${encodeURIComponent(exhibit.id)}&tab=${activeTopTab.value}`
+    url: `/pages/exhibit/detail?${params.toString()}`
   })
 }