feat: harden platform workflows and UI governance

src/apps/client/ClientSystemLogsPage.tsx

@@ -1,10 +1,11 @@
 import { useEffect, useMemo, useState } from 'react';
-import { CalendarDays, Download, FileText, Search } from 'lucide-react';
+import { CalendarDays, FileText, Search } from 'lucide-react';
 import {
   Button,
   Input,
   Pagination,
   Select,
+  SystemLogExport,
   Table,
   Tag,
   type TableColumn,
@@ -78,7 +79,7 @@ export function ClientSystemLogsPage() {
           <span className="sms-send-title__icon"><FileText size={22} /></span>
           <h1>系统日志</h1>
         </div>
-        <Button icon={<Download size={17} />} variant="secondary">导出日志</Button>
+        <SystemLogExport exportLogs={clientApi.exportSystemLogs} filters={{ keyword, level, module, range }} portal="client" />
       </div>
 
       <div className="system-log-filters">