✨ 完善客商MK审核提交、地区校验与流程实例校验

提交增加 loading，拆分所在地区/详细地址校验，支持 MK 审核跳转，并在已有流程实例时跳过重复提交。

Co-authored-by: Cursor <cursoragent@cursor.com>

src/utils/mk-approval.js

@@ -1,5 +1,5 @@
 import { getDictionary } from '@/api/system/dictbiz';
-import { processDelete, processSubmit } from '@/api/system/business-process';
+import { hasMkProcessInstance, processDelete, processSubmit } from '@/api/system/business-process';
 import { ElMessage } from 'element-plus';
 
 export const MK_BIZ = {
@@ -53,6 +53,12 @@ export function isMkEnabled(list = []) {
   return String(matched?.dictKey ?? '').trim() === '1';
 }
 
+/** 加载业务字典并判断是否开启 MK */
+export async function loadMkEnabled() {
+  const list = await loadMkTemplateList();
+  return isMkEnabled(list);
+}
+
 export async function resolveMkTemplateCode(dictName, list) {
   const dictList = list || (await loadMkTemplateList());
   const matched = dictList.find(item => String(item.dictValue || '').trim() === dictName);
@@ -78,6 +84,11 @@ export async function submitMkApprovalFlow({
   if (!isMkEnabled(list)) {
     return;
   }
+  // 先查 MK 流程实例：已有数据则不删除、不重新提交
+  const existsRes = await hasMkProcessInstance({ bizId: String(formInstanceId) });
+  if (existsRes?.data?.data) {
+    return;
+  }
   if ((conf.rejected || []).includes(approvalStatus)) {
     await processDelete({ formInstanceId: String(formInstanceId) });
   }