refactor:完成重构设备的添加，删除，更新。

DMS.Infrastructure/Repositories/VariableHistoryRepository.cs

@@ -74,7 +74,7 @@ public class VariableHistoryRepository : BaseRepository<DbVariableHistory>, IVar
     /// </summary>
     /// <param name="entity">要删除的变量历史实体。</param>
     /// <returns>受影响的行数。</returns>
-    public async Task<int> DeleteAsync(VariableHistory entity) => await base.DeleteAsync(new List<DbVariableHistory> { _mapper.Map<DbVariableHistory>(entity) });
+    public async Task<int> DeleteAsync(VariableHistory entity) => await base.DeleteAsync(_mapper.Map<DbVariableHistory>(entity));
 
     public async Task<int> UpdateAsync(List<VariableHistory> entities)
     {