List scraper result records

{
  "request": {
    "id": "request_123",
    "scraper": "tiktok",
    "status": "succeeded",
    "input": {
      "operation": "search",
      "query": "rust programming",
      "limit": 100
    },
    "resultCount": 1,
    "estimatedCostUsdMicros": 170000,
    "costUsdMicros": 1700,
    "resultsUrl": "/v1/requests/request_123/results",
    "errorMessage": null,
    "agentInstruction": "Fetch results with `tovuk request results request_123 --json`.",
    "createdAt": "2026-06-23T12:00:00Z",
    "updatedAt": "2026-06-23T12:00:30Z"
  },
  "records": [
    {
      "index": 0,
      "data": {
        "id": "video_123",
        "desc": "rust programming"
      },
      "sizeBytes": 64,
      "createdAt": "2026-06-23T12:00:30Z"
    }
  ],
  "nextCursor": null,
  "nextActions": [
    "Use `nextCursor` with `tovuk request results request_123 --cursor <nextCursor> --json` when another page exists."
  ]
}