curl --request POST \
  --url http://localhost:5300/api/v1/files/documents \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file'

{
  "code": 0,
  "msg": "ok",
  "data": {
    "file_id": "<string>"
  }
}