同步订单增加一些代码，修改多店铺同步异常返回提示

Work/ERP.API/TaskStatus.cs

@@ -21,6 +21,8 @@ namespace Work.ERP.API
 		/// 已人为中断
 		/// </summary>
 		[Description("已人为中断")]
-		ManuallyInterrupted = 3
+		ManuallyInterrupted = 3,
+		[Description("失败")]
+		Fail = 4
 	}
 }