curl --request GET \
  --url https://agents.textin.com/doc-agent/api/v1/claims/{claimId}/materials/category-mappings \
  --header 'x-api-key: <x-api-key>'

{
  "materials": [
    {
      "category": "费用与结算",
      "confidence_status": 2,
      "file_name": "发票.jpg",
      "file_size": "1133773",
      "file_type": ".jpg",
      "material_id": "material-1234",
      "material_type": "纸质住院发票",
      "status": 2
    }
  ],
  "status": "2"
}