altllm-portal-payments

# AltLLM Portal Payments NOWPayments payment-link creation, settlement polling, and direct wallet payment flows for the local `altllm` CLI. These payment links are separate from AltLLM Portal x402 credit top-ups. Use `altllm-x402` for `/api/billing/x402/quote` and `/settle` flows. ## Shared Setup > Before the first `altllm` command in a fresh checkout, read and follow: > - `../_shared/preflight.md` > - `../_shared/session-and-target.md` ## Command Index | Command | Purpose | |---|---| | `topup-crypto` | Create a hosted or direct crypto payment link | | `payment-status` | Inspect or poll an existing payment link | | `pay-payment-link` | Send a direct on-chain payment for an existing link | ## Guardrails - Unsupported `pay_currency` values must fail fast. - `pay-payment-link` must not pay terminal links (`completed`, `expired`, `failed`, `deactivated`). - Do not silently downgrade from direct payment to hosted checkout. - `topup-crypto --discount-code <code>` is for discounted credit top-up invoices, not subscriptions. - Discount-code top-ups should be previewed before payment-link creation so a single allowed token can be selected automatically. - Token-scoped discount codes must respect Portal-returned `allowedPayCurrencies`. - Payment command JSON should surface discount metadata returned by the Portal API. - `pay-payment-link --wait` should emit one final JSON document. - `payment-status` and `pay-payment-link` currently depend on the newest `100` records from `GET ...