Returns Promise<
| NextResponse<{ error: string; message: string; statusCode: number }>
| NextResponse<
{
channelId: string;
translationReady: boolean;
listenReady: boolean;
publicEnabled: boolean;
live: boolean;
totalSubscribers: number;
byLanguage: Record<string, number>;
},
>,
>
Status payload, or 404 when no channel exists.
Returns live ingest / subscriber status for the owner's channel.