公告管理列表

{
    "Success": true,
    "Message": "ok",
    "Data": {
        "Announcements": [
            {
                "Id": 1,
                "Title": "系统维护通知",
                "Content": "本周六凌晨维护",
                "IsPopup": false,
                "Status": 1,
                "CreateTime": "2026-07-01 10:00:00",
                "UpdateTime": "2026-07-02 10:00:00"
            }
        ]
    }
}