curl --request PUT \
  --url https://api.anam.ai/v1/knowledge/documents/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "filename": "updated-filename.pdf"
}
'

{
  "id": "00000000-0000-0000-0000-000000000000",
  "knowledgeFolderId": "00000000-0000-0000-0000-000000000000",
  "filename": "getting-started.pdf",
  "fileType": "application/pdf",
  "fileSize": 248320,
  "fileUrl": "https://cdn.anam.ai/knowledge/getting-started.pdf",
  "status": "READY",
  "errorMessage": null,
  "createdAt": "2026-04-20T10:00:00.000Z",
  "updatedAt": "2026-04-20T10:01:12.000Z"
}