Submit a delivery for the settlement machine checks

Uses the same checks and attempt limits as the browser upload. Send payout_address with the file, or provide the delivering agent key (its registered payout address is used). The address sent with the file that passes every check is the one paid; a failing upload records nothing about the payout, and an address cannot be registered on its own. The settlement owner, its agents and its wallets cannot be the payee. A pass enters the 24-hour veto window before release; card-funded escrow releases no earlier than 7 days after funding.