yxk-20260527-党委会发起流程：

在发起流程弹窗中新增“是否急件”，像 deadline 一样回显并允许修改。修改后的 urgencyLevel 只写入流程提交数据。

src/views/bg/bgpartymatter/BgPartymatterList.vue

@@ -440,6 +440,8 @@
       supDeptleaderid: record?.supDeptleaderid,
       showDeadlineField: true,
       deadline: record?.deadline,
+      showUrgencyLevelField: true,
+      urgencyLevel: record?.urgencyLevel,
     });
   }
 
@@ -509,6 +511,7 @@
     };
     const nextSuperviseCount = getNextSuperviseCount(record.superviseCount);
     const selectedDeadline = options.deadline || record.deadline;
+    const selectedUrgencyLevel = options.urgencyLevel ?? record.urgencyLevel ?? '0';
     const defaultDeptIds = getResponsibleDeptIds(record);
     const flowJsonData = {
       ...record,
@@ -516,6 +519,8 @@
       supDeptleaderid: options.supDeptleaderid ?? record.supDeptleaderid ?? '',
       superviseCount: nextSuperviseCount,
       deadline: selectedDeadline,
+      // 发起流程时允许临时调整急件标记，仅写入流程变量和流程中间表。
+      urgencyLevel: selectedUrgencyLevel,
     };
 
     const params = {
@@ -535,7 +540,7 @@
         businessId: record.id,
         title: record.title,
         content: record.content,
-        urgencyLevel: record.urgencyLevel,
+        urgencyLevel: selectedUrgencyLevel,
         deptId: options.deptId || defaultDeptIds,
         deptLeaderId: record.responDeptid,
         requireFinishDate: formatDate(selectedDeadline, 'YYYY-MM-DD'),