curl -X PATCH "https://api.hitler.app/api/clients/client-uuid-1" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"deployDay": "Wednesday", "contentCadence": 3}'

await api.updateClient("client-uuid-1", {
  deployDay: "Wednesday",
  contentCadence: 3,
});

{
  "id": "client-uuid-1",
  "name": "Acme Corp",
  "deployDay": "Wednesday",
  "contentCadence": 3,
  "status": "active",
  "createdAt": "2026-03-06T10:00:00.000Z",
  "updatedAt": "2026-03-06T12:00:00.000Z"
}