Get file metadata

curl --request GET \
  --url https://gomodel.example.com/v1/files/{id} \
  --header 'Authorization: <api-key>'

{
  "bytes": 123,
  "created_at": 123,
  "filename": "<string>",
  "id": "<string>",
  "object": "<string>",
  "provider": "<string>",
  "purpose": "<string>",
  "status": "<string>",
  "status_details": "<string>"
}