Debit balance optimistically on pending send; pointer cursor on summaries

- Headline balance now shows wallet.total (confirmed + mempool) instead
  of confirmed, so a pending outgoing spend is debited immediately rather
  than waiting for confirmation. The chain_stats-based confirmed balance
  counts a coin as yours until the spend is mined, which is why it didn't
  drop after broadcasting (incl. scanned-tx broadcasts). Incoming pending
  is still surfaced by the "+X pending" line.
- summary { cursor: pointer } so the "Show QR" disclosure (and any other
  <summary>) shows the hand cursor.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/app.js b/src/app.js
index 54592a7..ba44544 100644
--- a/src/app.js
+++ b/src/app.js
@@ -757,7 +757,9 @@ function balanceCard() {
     'div',
     { class: 'card balance' },
     h('div', { class: 'small faint', style: 'text-transform:uppercase;letter-spacing:.05em' }, t('balance')),
-    h('div', { class: 'amt', style: firstLoad ? 'opacity:.3' : '' }, fmtAmount(wallet.confirmed), ' ', unitTag('unit')),
+    // Headline is the projected balance (confirmed + mempool), so a pending
+    // spend is debited immediately rather than waiting for confirmation.
+    h('div', { class: 'amt', style: firstLoad ? 'opacity:.3' : '' }, fmtAmount(wallet.total), ' ', unitTag('unit')),
     wallet.pending > 0
       ? h(
           'div',