POST /leads
Authorization: Bearer <API_KEY>
Idempotency-Key: unique-delivery-id
{
"leads": [{
"external_id": "myhome-123",
"source": "myhome.ge",
"source_url": "https://myhome.ge/...",
"title": "Apartment in Batumi",
"city": "Batumi"
}]
}