fix: close documented platform polish gaps

src/apps/admin/AdminTemplateAuditPage.tsx

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useState } from 'react';
 import { Check, Search, X } from 'lucide-react';
 import { Breadcrumb, Button, Input, Select, Table, Tag, type TableColumn } from '@/components/ui';
 import { adminApi, type SmsTemplateAudit } from '@/api/adminApi';
+import { formatDateTime } from '@/utils/dateTime';
 
 const auditStatusLabelMap: Record<string, string> = {
   pending: '待审核',
@@ -41,7 +42,7 @@ export function AdminTemplateAuditPage() {
       { key: 'customer', title: '客户', render: (record) => record.tenant?.name ?? record.tenantId },
       { key: 'application', title: '短信应用', render: (record) => record.application?.name ?? record.applicationId },
       { key: 'content', title: '短信模板内容', render: (record) => record.content },
-      { key: 'submittedAt', title: '提交时间', render: (record) => new Date(record.createdAt).toLocaleString('zh-CN', { hour12: false }) },
+      { key: 'submittedAt', title: '提交时间', render: (record) => formatDateTime(record.createdAt) },
       {
         key: 'status',
         title: '状态',