优化插件，完善TreeListView

alielie

2025-07-04 0940f31b7eba1cf6b6a8c1fca72d97cf686e79f2

 HMI.Core/Setting/SystemSetting.cs

@@ -30,6 +30,7 @@
        public string PlcIp { get; private set; }
        public bool PlcEnabled { get; private set; }
        public string CurrentLanguage { get; private set; } = "zh-CN";
        public int LogExpiredDays { get; private set; } = 7;

        private static void LoadFromXml()
        {
@@ -106,5 +107,12 @@
            get => currentLanguage;
            set { Set(ref currentLanguage, value); }
        }

        private int logExpiredDays;
        public int LogExpiredDays
        {
            get => logExpiredDays;
            set { Set(ref logExpiredDays, value); }
        }
    }
}