{
  "template_id": "1TEMPLATE_DOC_ID",
  "customer_id": "cust-1042",
  "document_type": "commercial_offer",
  "title": "Коммерческое предложение Acme",
  "approver_email": "manager@example.com",
  "drive_folder_id": "1FOLDER_ID",
  "fields": {
    "client_name": "ООО Акме",
    "amount": "129 000 ₽",
    "deadline": "2026-06-15",
    "manager": "Ирина Петрова"
  }
}