curl --request GET \
  --url https://api.getdecipher.com/api/v1/test-runs/{runId}/screenshots/{stepNumber} \
  --header 'Authorization: Bearer <token>'

{
  "object": "stepScreenshots",
  "runId": 123,
  "stepNumber": 123,
  "stepDescription": "<string>",
  "screenshots": {
    "before": "<string>",
    "after": "<string>"
  },
  "expiresAt": "<string>"
}