chore: clean cache

frontend/src/components/SystemStatus.tsx

@@ -1,17 +0,0 @@
-import React from 'react';
-import { useQuery } from '@tanstack/react-query';
-import { checkUpdates } from '../api/system';
-
-const SystemStatus: React.FC = () => {
-  // We still query for updates here to keep the cache fresh,
-  // but the UI is now handled by NotificationCenter
-  useQuery({
-    queryKey: ['system-updates'],
-    queryFn: checkUpdates,
-    staleTime: 1000 * 60 * 60, // 1 hour
-  });
-
-  return null;
-};
-
-export default SystemStatus;