获取角色列表

{
    "code": 200,
    "message": "success",
    "data": {
        "content": [
            {
                "id": 1,
                "name": "guest",
                "description": "Guest",
                "permission_scopes": [
                    {
                        "path": "/",
                        "permission": 0
                    }
                ]
            },
            {
                "id": 2,
                "name": "admin",
                "description": "Administrator",
                "permission_scopes": [
                    {
                        "path": "/",
                        "permission": 12543
                    }
                ]
            }
        ],
        "total": 2
    }
}