curl --request GET \
  --url https://open.bigmodel.cn/api/paas/v4/files \
  --header 'Authorization: Bearer <token>'

{
  "object": "list",
  "data": [
    {
      "id": "<string>",
      "object": "file",
      "bytes": 123,
      "created_at": 123,
      "filename": "<string>",
      "purpose": "<string>"
    }
  ],
  "has_more": true
}