获取回调配置

{
    "code": 200,
    "message": "success",
    "now": "2025-09-25 11:51:02",
    "data": {
        "callback_url": "https://test.xiaoman.cn/api/callback",
        "callback_verify": "0",
        "security_method": "AES-256-GCM"
    }
}