Next batch from MARKETPLACE_FLOW_AUDIT.md:
- bolt11.ts: getBolt11Expiry / isBolt11Expired; usePayPaymentPointer refuses
an expired invoice before paying (a lapsed offer invoice used to fail deep
in the wallet with a confusing error).
- PayWithSats shows unsupported pointer kinds (creq/clink) as unavailable up
front instead of enabling a button that fails after the click.
- useTradeAttestations: verify events (onlyVerified) and keep the newest per
(author, kind, d), so a newer s=revoked supersedes a stale valid copy;
useTradeReputation no longer trusts unverified relay events.
- EscrowRequestDialog persists the minted token locally before publishing
(lib/pendingEscrow.ts), so a failed send cannot strand the locked funds.
