临时提交，新功能未 完成

Data/Entities/DbMenu.cs

@@ -21,4 +21,6 @@ public class DbMenu
     
     [SugarColumn(IsIgnore = true)]
     public List<DbMenu> Items { get; set; }
+    
+    public DbMenu? Parent { get; set; }
 }

Data/Entities/DbVariableTable.cs

@@ -24,5 +24,5 @@ public class DbVariableTable
     [SugarColumn(IsNullable = true)] public int? DeviceId { get; set; }
 
     [Navigate(NavigateType.ManyToOne, nameof(DeviceId))]
-    public Device? Device { get; set; }
+    public DbDevice? Device { get; set; }
 }