添加了数据库相关了类，和枚举类型相关的类，并且将枚举类型绑定到前段

Data/Entities/DbMqtt.cs

@@ -0,0 +1,11 @@
+using SqlSugar;
+
+namespace PMSWPF.Data.Entities;
+
+[SugarTable("Mqtt")]
+public class DbMqtt
+{
+    [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]//数据库是自增才配自增 
+    public int Id { get; set; }
+    
+}