Zappable offer codes and per-name Lightning offers

CLINK offers (noffer): every wallet gets a static offer keypair (synced
across devices, first-minted wins) answering kind-21001 invoice
requests — from open tabs and from the service worker while closed,
which mints against the mirrored state (the record now carries chain-4
and chain-5 key windows) and raises an open-to-receive notification.
Zap requests ride along and their kind-9735 receipts publish once the
payment is claimed. The code is shown in the payment-address card for
pasting into a Nostr profile; the notifier watches and relays kind
21001 alongside NWC.

Payment names also gain a Lightning offer: the registrar creates a
BOLT 12 offer per name on the node and appends lno= to the DNS record;
a settle-forwarder pushes each received payment on to the name's ark
destination from a small float wallet (custody window: seconds between
Lightning settle and the ark send).

Name resolution now runs full client-side DNSSEC validation
(src/dnssec.js): binary DoH, root-anchor chain walk, RSA + ECDSA via
WebCrypto — the resolver is untrusted transport, verified against live
signed zones including the canonical BIP-353 test name.

Co-Authored-By: Claude Fable 5 <[email protected]>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/sw-nwc.js b/src/sw-nwc.js
index 8267b6b..968be91 100644
--- a/src/sw-nwc.js
+++ b/src/sw-nwc.js
@@ -29,6 +29,17 @@ self.addEventListener('push', (e) => {
     } catch (err) {
       console.warn('[sw-nwc] auto-answer failed:', err && err.message);
     }
+    // handled-with-a-heads-up: e.g. an invoice was minted while closed and
+    // the user should open Hal to complete the receive
+    if (handled && handled.notify) {
+      await self.registration.showNotification(handled.notify.title, {
+        body: handled.notify.body,
+        icon: 'icon-192.png', badge: 'icon-192.png',
+        tag: 'nwc-incoming', renotify: true,
+        data: { url: './' },
+      });
+      return;
+    }
     if (handled) return;
     await self.registration.showNotification('Payment request', {
       body: 'An app is asking your wallet to pay. Open Hal to approve.',