Tab carousel, login avatar fix, signer callback hint

Tab changes no longer flash the whole page: only the content pane below
the tab strip slides sideways with a soft cross-fade — swipe direction
when a gesture caused it, index order for taps — while the balance card
and strip stay planted. Full-page entrances remain for real page
changes (settings, chat, profile, takeovers).

After a nostr sign-in the header briefly wore the wallet key's face:
nostrLoginIdentity now reports a just-connected live signer immediately
instead of waiting for the persisted link that only lands after the
wallet opens.

The nostrconnect URI carries a callbackUrl hint (NIP-55 style) so
signer apps that honor it can bounce back to the PWA after approval —
apps that don't will still find the session signed in when the user
returns, since the handshake completes over the relay in the
background.

Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Wvj4aoeMZwA7VUGdJP9Swi

1 files changed, 4 insertions, 0 deletions

diff --git a/src/features/nostrlogin.js b/src/features/nostrlogin.js
index 6b55bbf..35db691 100644
--- a/src/features/nostrlogin.js
+++ b/src/features/nostrlogin.js
@@ -241,6 +241,10 @@ export function nostrLoginFeature(ctx) {
     // The nostr identity this session is logged in as, for features that
     // should speak as the user (the payment address defaults to this npub).
     nostrLoginIdentity() {
+      // A just-connected signer counts immediately — the persisted link lands
+      // only after the wallet opens, and the header avatar shouldn't show the
+      // wallet key's face in the gap.
+      if (live) return { pubkey: live.pubkey, npub: npubOf(live.pubkey), signer: live };
       const st = load();
       if (!st.pubkey) return null;
       return { pubkey: st.pubkey, npub: npubOf(st.pubkey), signer: live };