ChunkUploadResponse

{
    "isSuccess": true,
    "data": {
        "recordingId": "41ba4b89-29ed-4a25-a7ea-119c9c9f83d0",
        "chunkIndex": 7,
        "status": "UPLOADED",
        "sizeBytes": 482301,
        "startedAtMs": 35000,
        "endedAtMs": 40000,
        "uploadedAt": "2026-05-20T10:15:40Z"
    },
    "message": "Operation completed successfully",
    "statusCode": 200,
    "errors": []
}