Lightning Piggy 0.4.1

Consolidates three logical changes into one user-visible release:
- Balance header split: big number in font_montserrat_24, smaller unit
  suffix in font_montserrat_16, sharing a baseline. Long balance strings
  no longer collide with the wallet-type indicator icons.
- Tap-to-cycle transaction font drops the two unscii bitmap fonts that
  lacked the ₿ glyph; cycle is now five Montserrat sizes.
- NWC relay watchdog: detects half-broken WebSockets where sends work
  but receives are silently dropped (most common cause: transient WiFi
  packet loss). After 3 silent poll cycles (~6 min) closes + reopens +
  re-subscribes to the relay. 2 s sleep between close and open avoids
  exhausting the ESP32 LWIP socket pool. The orange stale-data dot
  self-clears once a useful response arrives.
- Plus 0.4.1's existing payment formatting + UI polish bullets (number
  format separator on transaction amounts, "symbol" → "₿ symbol" denom
  rename with one-shot migration, scroll-in-place transactions list,
  auto-scroll-to-top on new tx + after 2 min idle, larger balance tap
  target).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: 2 people

app_index.json

@@ -4,10 +4,10 @@
 "publisher": "LightningPiggy Foundation",
 "short_description": "Display wallet that shows balance, transactions, receive QR code etc.",
 "long_description": "See https://www.LightningPiggy.com",
-"icon_url": "https://apps.micropythonos.com/apps/com.lightningpiggy.displaywallet/icons/com.lightningpiggy.displaywallet_0.4.0_64x64.png",
-"download_url": "https://apps.micropythonos.com/apps/com.lightningpiggy.displaywallet/mpks/com.lightningpiggy.displaywallet_0.4.0.mpk",
+"icon_url": "https://apps.micropythonos.com/apps/com.lightningpiggy.displaywallet/icons/com.lightningpiggy.displaywallet_0.4.1_64x64.png",
+"download_url": "https://apps.micropythonos.com/apps/com.lightningpiggy.displaywallet/mpks/com.lightningpiggy.displaywallet_0.4.1.mpk",
 "fullname": "com.lightningpiggy.displaywallet",
-"version": "0.4.0",
+"version": "0.4.1",
 "category": "finance",
 "activities": [
     {