fix(workflow): 修复工作流归档和审核注释逻辑

- 将归档完成注释简化为归档
- 修复汇总节点审核通过时的注释显示逻辑
- 优化审核结果处理中的注释赋值条件
- 修正归档完成状态下的注释设置
- 调整审核不通过时的默认注释内容

OpenAuth.App/workflow/WorkflowEngineApp.cs

@@ -325,9 +325,8 @@ public class WorkflowEngineApp : SqlSugarBaseApp<SysCategoryType, SugarDbContext
                 case "Branch" when currentNode.NodeName == "汇总判断":
                     if (requestDto.AuditResult == "Pass")
                     {
-                        comment = "归档完成";
+                        comment = "归档";
                     }
-
                     ProcessSummaryNode(flowInstance, currentNode, userId, userName, requestDto);
                     break;
 
@@ -931,13 +930,16 @@ public class WorkflowEngineApp : SqlSugarBaseApp<SysCategoryType, SugarDbContext
             Status = isAllPass ? "Done" : "ToDo",
             ReceiveTime = DateTime.Now,
             HandleTime = DateTime.Now,
-            Comment = isAllPass ? requestDto.Comment : "审核不通过，退回区县修改补充材料"
+            Comment = isAllPass
+                ? (string.IsNullOrEmpty(requestDto.Comment) ? "审核不通过，退回区县修改补充材料" : requestDto.Comment)
+                : "归档完成"
         };
         if (roleId != 0)
         {
             summaryWorkitem.OrgId = dept.Id;
             summaryWorkitem.OrgName = dept.Name;
         }
+
         _sqlSugar.Insertable(summaryWorkitem).ExecuteCommand();
 
         // 步骤5：更新流程实例最终状态