{"status":"ok","service":"middleman","endpoints":{"POST /api/offload/scintai":"enqueue {prompt, aspectRatio, uid}","GET /api/offload/scintai/:uid":"lazy-poll single job (live Modal proxy)","POST /api/offload/scintai/results":"batch poll {uids: string[]}","DELETE /api/offload/scintai/:uid":"purge KV record"}}