refactor(工单日志): 修改工单日志接口返回类型并优化实现

将WorkOrderLog方法的返回类型从int改为List<ProWorkorderUpdateLog>，并实现查询工单变更日志功能

DOAN.Service/MES/Product/ProWorkorderService.cs

@@ -222,9 +222,9 @@ namespace DOAN.Service.MES.product
         /// <param name="log"></param>
         /// <param name="Operator"></param>
         /// <returns></returns>
-        public int WorkOrderLog(string workorder, string log, string Operator)
+        public List<ProWorkorderUpdateLog> WorkOrderLog(string workorder)
         {
-            return _utilityService.WorkOrderLog(workorder, log, Operator);
+            return _utilityService.WorkOrderLog(workorder);
         }
 
         /// <summary>