fix: 修改底层UtilConvert.cs，修复时间查询

xiazhengtongxue

2026-03-16 406b8d784a1a18349204dbc18a23e4797e04e476

 项目代码/WMS/WIDESEA_WMSServer/WIDESEA_Core/Helper/UtilConvert.cs

@@ -973,6 +973,12 @@
                case HtmlElementType.like:
                    linqExpression = LinqExpressionType.Contains;
                    break;
                case HtmlElementType.thanorequal:
                    linqExpression = LinqExpressionType.ThanOrEqual;
                    break;
                case HtmlElementType.lessorequal:
                    linqExpression = LinqExpressionType.LessThanOrEqual;
                    break;
                default:
                    linqExpression = LinqExpressionType.Equal;
                    break;