post
https://apis.kentro.live/store/v1/invoices.paymentStatus
Where a payment of an invoice (id) stands; with idempotencyKey, that payer attempt's. Records a payment that succeeded meanwhile and closes a stale hosted-page link, so read it after every redirect back and while a payment is confirming or processing.
Who may call it: A signed-in buyer (X-Storefront-Buyer) whose account is confirmed (session.get answers confirmed: true); an unconfirmed buyer is refused with 403 CONFIRMATION_REQUIRED.
