curl -X POST "https://api.nedzo.ai/v1/templates/123e4567-e89b-12d3-a456-426614174000/duplicate" \
    -H "Authorization: Bearer YOUR_API_KEY"

{
  "id": "def45678-e89b-12d3-a456-426614174000",
  "name": "Customer Onboarding Agent (Copy)",
  "description": "A voice agent template for onboarding",
  "templateType": "agent",
  "visibility": "private",
  "schemaVersion": "1.0.0",
  "snapshotSizeBytes": 15240,

  "createdAt": "2026-01-16T09:15:00Z",
  "updatedAt": "2026-01-16T09:15:00Z"
}