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

tests/e2e/explain-hall-page.spec.ts

@@ -61,7 +61,7 @@ test('hall goes directly to paged guide objects without outline requests', async
   await page.mouse.wheel(0, 10000)
   await expect(page.getByText('讲解对象21', { exact: true })).toBeVisible()
   await page.getByText('讲解对象1', { exact: true }).click()
-  await expect(page).toHaveURL(/pages\/exhibit\/detail\?.*targetType=STOP.*targetId=target-1/)
+  await expect(page).toHaveURL(/pages\/exhibit\/detail\?.*stopId=stop-1/)
   expect(requests.some((url) => url.includes('/outlines'))).toBe(false)
   expect(requests.filter((url) => url.includes('/stops/page')).map((url) => new URL(url).searchParams.get('pageNo'))).toEqual(['1', '2'])
 })