ConstCommon initialization prefix for ledger-account-backed withdrawals across all rails. Validates the payment instrument, debits the source ledger account, sweeps to the Victor virtual account when applicable (no-op on rails that don't sweep), and creates the per-withdrawal redemption. Returns "FAILED" for validation/debit failures, "RETURNED" if the sweep triggered a refund, or "SUCCESS" otherwise. Rail workflows call this before kicking off any rail-specific provider activity.
Initiates a wire drawdown withdrawal from a source ledger account.
Debits funds from user's wallet into a pending ledger account and creates a redemption.