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* Fix send-form UX around lightning pays; harden ln state machinesAdam Soltys2026-07-311-13/+21
| | | | | | | | | | | | | | | | | | | - a rejected cosign (gRPC INVALID_ARGUMENT) returns the input vtxo to spendable and fails the action instead of leaving it pending forever — the stuck-pending state that pushed small zaps onto Boltz's 25k minimum - ark ln-pay now takes over when funds are settling (retrying quote) rather than falling through to Boltz - typing a destination clears stale send errors (also cleared on tab switch); paste path likewise - typed lightning addresses no longer auto-advance mid-keystroke (the matcher fired at `[email protected]` before `.com`, yanking the form away): the send form offers an explicit "Zap <addr>" button; pasted/scanned addresses still advance immediately - ln-recv: HTLC vtxos anchored to a not-yet-confirmed pool round park and retry instead of throwing; the requested HTLC expiry is anchored on first prepare so retries can't inflate it past the server's grant Co-Authored-By: Claude Fable 5 <[email protected]>
* Add NIP-57 Lightning zaps (npub / lightning address / lnurl)Adam Soltys2026-07-301-0/+163
Send a Lightning zap to a nostr npub, a lightning address (name@domain), or an lnurl. New src/lnurl.js does the resolution half — target → LNURL-pay params → signed kind-9734 zap request → callback → bolt11 — and the new zaps feature (src/features/zaps.js) drives the amount/comment UI, then hands the invoice to the existing Boltz submarine-swap flow via a new swaps.startLnPay hook, so there's one tested pay/review/confirm/success path. Routing: a bolt11 is still caught by swaps; an npub still prefers an instant free Ark zap when Ark can serve it, and only falls through to a Lightning zap otherwise — ark's "no Ark address" screen also offers an explicit "Zap over Lightning" fallback (gated on the zaps feature's canLnZap). A real zap receipt is attributed only when the server advertises allowsNostr and we know the recipient's pubkey; otherwise it degrades to a plain LNURL-pay. Nostr seam gains nostrSign (finalize without publishing), nostrProfile (kind-0 with lud16/lud06), and nostrRelays. Lightning addresses are debounced in matchSendText since their regex matches mid-typing. Verified: unit tests for parse/encode/zap-request; a live resolve→signed 9734→payable mainnet bolt11 against coinos; and an in-browser DOM smoke (zap form + LNURL params over CORS + allowsNostr hint + handoff). Co-Authored-By: Claude Opus 4.8 <[email protected]>