refactor:完成变量表的重构添加，删除，更新

DMS.Application/Interfaces/Management/IVariableTableManagementService.cs

@@ -19,17 +19,17 @@ public interface IVariableTableManagementService
     /// <summary>
     /// 异步创建一个新变量表及其关联菜单（事务性操作）。
     /// </summary>
-    Task<CreateVariableTableWithMenuDto> CreateVariableTableAsync(CreateVariableTableWithMenuDto dto);
+    Task<CreateVariableTableWithMenuDto> AddAsync(CreateVariableTableWithMenuDto dto);
 
     /// <summary>
     /// 异步更新一个已存在的变量表。
     /// </summary>
-    Task<int> UpdateVariableTableAsync(VariableTable variableTableDto);
+    Task<int> UpdateAsync(VariableTable variableTableDto);
 
     /// <summary>
     /// 异步删除一个变量表。
     /// </summary>
-    Task<bool> DeleteVariableTableAsync(int id);
+    Task<bool> DeleteAsync(VariableTable variableTable);
 
     /// <summary>
     /// 异步加载所有变量表数据到内存中。