Get one scroll by ID, including its current stage and terminal result counts

{
  "found": true,
  "scroll": {
    "id": "string",
    "status": "queued",
    "stage": "string",
    "progress": {
      "property1": null,
      "property2": null
    },
    "resultCounts": {
      "property1": null,
      "property2": null
    },
    "failureCode": "string",
    "createdAt": 0,
    "updatedAt": 0,
    "startedAt": 0,
    "completedAt": 0
  }
}

{
  "error": "unauthorized",
  "message": "string",
  "subscribeUrl": "string"
}

{
  "error": "subscription_required",
  "message": "string",
  "subscribeUrl": "string"
}

{
  "error": "temporary_service_error",
  "message": "string",
  "retryable": true
}

{
  "error": "rate_limited",
  "message": "string",
  "retryAfter": 0
}

{
  "error": "temporary_service_error",
  "message": "string",
  "retryable": true
}

{
  "error": "temporary_service_error",
  "message": "string",
  "retryable": true
}