完善跨平台回放与实时状态更新

frontend/src/api/streams.ts

@@ -116,3 +116,7 @@ export async function getWatchUrls(streamId: number): Promise<WatchInfo> {
   const { data } = await api.get(`/streams/${streamId}/watch`)
   return data
 }
+
+export function getStreamStatusUrl(streamId: number): string {
+  return `/api/streams/${streamId}/events`
+}