fix: RC feedback round 2 — kiosk staleness, LND icon+retry, mesh detection surfacing

Kiosk (backgrounds + FIPS mismatch, one root cause each):
- kiosk service now also waits for the web-ui asset swap (probes a large
  bg asset, bounded 60s) — it launched mid-rsync and CSS background 404s
  are never refetched, hence blank backgrounds on first boot
- FipsNetworkCard polls every 15s instead of fetching once on mount
- PWA updates auto-apply on the kiosk (localStorage kiosk flag) — an
  unattended kiosk could never click 'Update Now' and ran stale bundles

LND App Store:
- catalog icon pointed at lnd.svg which doesn't exist (lnd.png does);
  store card also retries the sibling extension before the placeholder
- image pulls retry once after fast transient failures (<30s) — fresh
  first-boot networks reset connections; slow failures aren't retried
  so the UI never waits longer than before

Mesh detection:
- mesh.status now always reports device_present + detected_devices
  (previously only when the service wasn't running, so the UI couldn't
  tell 'no radio' from 'radio present, session connecting')
- Mesh page shows 'Mesh device detected' badge + 'Device detected —
  connecting' status for present-but-not-connected radios
- the 99-mesh-radio.rules udev rule was never staged into the ISO tree
  (installer searched for it and found nothing) — ship it at the media
  root and install it from install-to-disk.sh too

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

image-recipe/_archived/build-auto-installer-iso.sh

@@ -1569,6 +1569,13 @@ chmod +x "$WORK_DIR/first-boot-secrets.sh"
 cp "$WORK_DIR/first-boot-secrets.sh" "$ARCH_DIR/scripts/"
 cp "$WORK_DIR/archipelago-first-boot-secrets.service" "$ARCH_DIR/scripts/"
 
+# Ship the mesh-radio udev rule at the media root — the embedded installer
+# searches "$BOOT_MEDIA/99-mesh-radio.rules" first, but nothing ever staged
+# the rule into the ISO tree, so installed nodes never got /dev/mesh-radio
+if [ -f "$SCRIPT_DIR/../configs/99-mesh-radio.rules" ]; then
+    cp "$SCRIPT_DIR/../configs/99-mesh-radio.rules" "$INSTALLER_ISO/99-mesh-radio.rules"
+fi
+
 # Tor setup: copy torrc and create first-boot setup script
 mkdir -p "$ARCH_DIR/scripts/tor"
 if [ -f "$SCRIPT_DIR/../../scripts/tor/torrc.template" ]; then