停用 stop/info 旧接口，统一详情入参为 stopId

- 详情页路由入参统一为 stopId，废弃 targetType/targetId
- ExplainDetailEntryRequest 与 GlobalAudioSource 移除 targetType/targetId 字段
- 播放器源匹配仅按 stopId 判定，移除 targetType 兜底
- 删除 explainDetailTarget 死代码
- 清理 guideStopInfoAdapter 中 stop/info、play-info、text-info 旧契约类型与转换函数
- 补充测试服务器 Nginx SSL 部署手册
- 同步更新单测与 e2e 用例

Made-with: Proma

src/usecases/explainUseCase.ts

@@ -1,5 +1,4 @@
 import type {
-  AudioPlayTargetType,
   ExplainBusinessUnit,
   ExplainGuideStop,
   ExplainGuideStopPage,
@@ -43,8 +42,6 @@ export interface ExplainAudioSelection {
 export interface ExplainDetailEntryRequest {
   exhibitId: string
   stopId?: string
-  targetType?: AudioPlayTargetType
-  targetId?: string
   lang?: AudioLanguage
   version?: GuideAudioVersion
   // Navigation context is non-authoritative and keeps deep links independent of catalog loading.
@@ -99,7 +96,7 @@ export class ExplainUseCase {
   }
 
   private resolveDetailStopId(request: ExplainDetailEntryRequest) {
-    return String(request.stopId || request.targetId || request.exhibitId || '').trim()
+    return String(request.stopId || request.exhibitId || '').trim()
   }
 
   private async resolveStaticDetailFallback(