체크아웃 결과 조회

curl --request GET \
  --url https://api.hybridbox.io/v1/public/accounts/{account_id}/billing/checkout/result

{
  "account": {
    "account_id": "<string>",
    "currency": "<string>",
    "chargebee_subscription_status": "<string>"
  },
  "checkout_token": "<string>",
  "message": "<string>",
  "status": "<string>",
  "auth_required_for_dashboard": true,
  "dashboard_url": "<string>"
}