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) <[email protected]>

1 files changed, 0 insertions, 25 deletions

diff --git a/tailwind.config.cjs b/tailwind.config.cjs
deleted file mode 100644
index 8bc2b2d..0000000
--- a/tailwind.config.cjs
+++ /dev/null
@@ -1,25 +0,0 @@
-/** @type {import('tailwindcss').Config} */
-module.exports = {
-	content: ["./src/**/*.{html,js,svelte}"],
-	plugins: [require("daisyui")],
-	daisyui: {
-		themes: [
-			{
-				light: {
-					...require("daisyui/src/theming/themes").lofi,
-					gradient: "#C3CFE2",
-          error: "#b91c1c",
-				},
-			},
-		], // false: only light + dark | true: all themes | array: specific themes like this ["light", "dark", "cupcake"]
-		darkTheme: "dark", // name of one of the included themes for dark mode
-    darkMode: 'class',
-		base: true, // applies background color and foreground color for root element by default
-		styled: true, // include daisyUI colors and design decisions for all components
-		utils: true, // adds responsive and modifier utility classes
-		prefix: "", // prefix for daisyUI classnames (components, modifiers and responsive class names. Not colors)
-		logs: false, // Shows info about daisyUI version and used config in the console when building your CSS
-		themeRoot: ":root", // The element that receives theme color CSS variables
-	},
-	safelist: ["w-16", "h-16", "w-20", "h-20", "w-24", "h-24"],
-};