Instant gift-via-split and spend-unconfirmed support

Gift split no longer makes the sender wait for confirmation: createGiftFromSplit
broadcasts the carve-out, waits only until it's visible in the mempool, then
builds the gift spending that still-unconfirmed coin. Funding + claim form a
chain that confirms together; the recipient sees a pending balance until then.
Polls for mempool visibility before reserving so a background refresh can't drop
a not-yet-indexed coin and prune the reservation (double-spend risk).

Regular sends can already draw on unconfirmed coins; surface that honestly:
a 'pending' tag on unconfirmed coins in coin control, and a plain-language
warning at review when a payment spends unconfirmed bitcoin (won't confirm
until the ancestor does).

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

1 files changed, 1 insertions, 1 deletions

diff --git a/src/i18n.js b/src/i18n.js
index a4f2180..f164b0b 100644
--- a/src/i18n.js
+++ b/src/i18n.js
@@ -141,6 +141,7 @@ const STR = {
     selectCoin: 'Select at least one coin to spend.',
     networkFee: 'Network fee',
     offlineSignNote: 'Offline: sign now, then broadcast the signed transaction from an online device.',
+    unconfirmedInputWarn: 'This payment spends bitcoin that hasn’t confirmed yet, so it won’t confirm until that earlier transaction does.',
     signBroadcast: 'Sign & broadcast',
     signTx: 'Sign transaction',
     signExport: 'Sign & export (broadcast elsewhere)',
@@ -198,7 +199,6 @@ const STR = {
     giftSplitExplain: 'This gift would lock {lock} until it’s claimed ({change} of it comes back to you then). You can split a right-sized coin first for about {fee} so only the gift amount stays locked.',
     giftSplitFirst: 'Split a coin first',
     giftLockWhole: 'Lock the whole coin ({n})',
-    giftSplitPending: 'Coin split sent. Once it confirms, create your gift link — it’ll lock only the gift amount.',
     giftSplitFailed: 'Could not split the coin.',
     lockedInGifts: 'Locked in gifts',
     giftReserved: 'Unclaimed gift links ({n})',