Router.register('/devices', async () => {
  const data = await API.devices().catch(() => ({ list: [] }));
  const items = (data.list || []).map(d => `<li><span>${d.name || '设备'}</span><span class="badge ${d.status==='ok'?'success':'danger'}">${d.status||'未知'}</span></li>`).join('');
  return `<div class="card">
    <div style="font-weight:600;margin-bottom:8px">设备状态</div>
    <ul class="list">${items || '<li>暂无数据</li>'}</ul>
  </div>`;
});