Agent Action that AUTHORIZES an explicit same-chain transfer to an address.

This is a governance checkpoint, not an executor. It runs the spend through Raxol.Payments.Actions.SpendGate (approved-address confirmation threshold + atomic ledger reservation) and returns an "authorized" status. It does NOT itself broadcast a transaction: this package has no same-chain EOA send rail. Cross-chain and stealth transfers execute through Raxol.Payments.Actions.Payments.ExecuteXochiIntent; a same-chain send is performed by the caller's own rail after this authorization. If an authorized transfer is abandoned, release the reservation with SpendGate.release/3 so the budget is not permanently consumed.