重构包装管理服务，优化数据结构与接口

移除 APIPackagingManageService，功能迁移至 HJGLPackagingmanageService 并进行重构，新增方法支持包装与组件关联管理、分页查询、状态描述等功能。
更新 PackagingManageController，替换旧服务调用，新增接口方法。
调整数据库结构，新增子表 HJGL_PackagingManageDetail，优化包装与组件的关联存储。
更新前端页面逻辑，适配新数据结构，新增 StackingPosition 字段显示。
优化 Model 层字段定义，调整长度限制，提升性能与一致性。
更新报表模板与项目文件，移除冗余代码，提升代码可维护性。

SGGL/FineUIPro.Web/HJGL/PreDesign/PackagingManageView.aspx.cs

@@ -43,37 +43,7 @@ namespace FineUIPro.Web.HJGL.PreDesign
             var detailList = HJGLPackagingmanageService.GetPackagingDetailById(PackagingManageId);
             Grid1.RecordCount = detailList.Count();
             Grid1.DataSource = detailList;
-            Grid1.DataBind();
-
-            /* if (pack.TypeInt == (int)HJGL_PackagingmanageService.TypeInt.预制组件)
-             {
-                 DataTable tb = BLL.HJGL_PackagingmanageService.GetPackagingDetailById(PackagingManageId);
-
-                 Grid1.RecordCount = tb.Rows.Count;
-                 tb = GetFilteredTable(Grid1.FilteredData, tb);
-                 var table = this.GetPagedDataTable(Grid1, tb);
-                 Grid1.DataSource = table;
-                 Grid1.DataBind();
-             }
-             else  
-             {
-                 var result = HJGLPackagingmanagedetailService.GetPackagingData(PackagingManageId).ToList();
-                 var detailList = from x in result
-                         select new
-                         {
-                             PipelineComponentId = x.Id,
-                             PipelineComponentCode = x.MaterialCode,
-                             num = x.Number,
-                             CU = x.MaterialUnit,
-                             UnitWorkName = x.UnitWorkId == null ? "" : UnitWorkService.GetNameById(x.UnitWorkId),
-                             x.FlowingSection,
-                         };
-                 Grid1.RecordCount = detailList.Count();  
-                 Grid1.DataSource = detailList;
-                 Grid1.DataBind();
-             }*/
-
-
+            Grid1.DataBind();  
         }
         #endregion