curl --request GET \
  --url https://api.app.hrizn.io/v1/public/inventory/stats \
  --header 'X-API-Key: <api-key>'

{
  "data": {
    "total_vehicles": 123,
    "with_ai_description": 123,
    "without_ai_description": 123,
    "new_vehicles": 123,
    "used_vehicles": 123,
    "description_coverage_pct": 123
  }
}