fix【【轨迹中台】kpi预警新增预警因素销售产品限制不能输入中文】

https://www.tapd.cn/60863849/bugtrace/bugs/view/1160863849001049573

src/SJZY.Track.Application/Helpers/ForewarningHelper.cs

@@ -134,6 +134,11 @@ public class ForewarningHelper
                                 throw new BusinessException(message: "产品代码只接收字符串");
                             }
 
+                            if (!StringHelper.IsValidEnglishString(value.ToString()))
+                            {
+                                throw new BusinessException(message: "产品代码只能的英文字符");
+                            }
+
                             rules[row].ProductCode = strValue;
                             break;
                         default: