添加了NLog日志，并且配置了写入数据库，修改了Notification通知不使用依赖注入，而是使用Message的方式

Helper/NotificationHelper.cs

@@ -0,0 +1,14 @@
+using CommunityToolkit.Mvvm.Messaging;
+using PMSWPF.Enums;
+using PMSWPF.Message;
+
+namespace PMSWPF.Helper;
+
+public class NotificationHelper
+{
+    public static void ShowMessage(string msg, NotificationType notificationType=NotificationType.Info,bool isGlobal = false)
+    {
+        WeakReferenceMessenger.Default.Send<NotificationMessage>(
+            new NotificationMessage(msg, notificationType));
+    }
+}