From c5443946031ec32a7b3008fa751eb7916654a9f6 Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Sun, 14 Jun 2026 23:01:03 -0700
Subject: Rebuild as single-file offline BIP84 wallet

Replace the SvelteKit/daisyUI prototype with a vanilla JS + hand-rolled CSS
app that Bun bundles (code + scure/noble crypto + QR + CSS) into one
self-contained dist/index.html runnable offline from file://.

Wallet core (src/wallet.js):
- BIP84 native-segwit HD wallet from BIP39 seed (+optional passphrase)
- gap-limit scan of receive/change chains, aggregate balance, tx history
- fresh receive/change addresses; signs with witnessUtxo only (enables
  offline signing with no prev-tx fetch)
- coin selection + fee estimation via btc-signer selectUTXO; send-max;
  manual coin control
- offline JSON snapshot export/import (keyless) + signed-tx hex/QR export
- realtime mempool.space WebSocket: track-addresses -> debounced auto
  refresh of balances/history (no polling); live status badge

UI (src/app.js): clean light paper-wallet; create (with optional, skippable
backup verification) / import flow; receive (QR) / send / history / coins /
tools tabs; clickable logo returns home.

API (src/api.js): mempool.space wrapper with retry/backoff for scan-burst
rate limiting; single network choke-point for offline enforcement.

Verified: BIP84 spec vectors, build/sign/parse for auto/max/manual flows,
snapshot roundtrip, live scan + WebSocket, headless-Chrome UI smoke tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 static/bg.png      | Bin 182111 -> 0 bytes
 static/bg.webp     | Bin 27804 -> 0 bytes
 static/bitcoin.svg |   7 -------
 static/favicon.svg |   1 -
 static/random.svg  |   6 ------
 5 files changed, 14 deletions(-)
 delete mode 100644 static/bg.png
 delete mode 100644 static/bg.webp
 delete mode 100644 static/bitcoin.svg
 delete mode 100644 static/favicon.svg
 delete mode 100644 static/random.svg

(limited to 'static')

diff --git a/static/bg.png b/static/bg.png
deleted file mode 100644
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diff --git a/static/bg.webp b/static/bg.webp
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diff --git a/static/bitcoin.svg b/static/bitcoin.svg
deleted file mode 100644
index 04079be..0000000
--- a/static/bitcoin.svg
+++ /dev/null
@@ -1,7 +0,0 @@
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diff --git a/static/favicon.svg b/static/favicon.svg
deleted file mode 100644
index cc5dc66..0000000
--- a/static/favicon.svg
+++ /dev/null
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diff --git a/static/random.svg b/static/random.svg
deleted file mode 100644
index f3e5923..0000000
--- a/static/random.svg
+++ /dev/null
@@ -1,6 +0,0 @@
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