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>

neode-ui/src/views/Mesh.vue

@@ -1767,6 +1767,7 @@ async function downloadAttachment(payload: MeshAttachmentPayload) {
         <p class="mesh-subtitle">
           {{ mesh.status?.peer_count ?? 0 }} peer{{ (mesh.status?.peer_count ?? 0) !== 1 ? 's' : '' }}
           <span v-if="mesh.status?.device_connected" class="mesh-subtitle-badge">Live</span>
+          <span v-else-if="mesh.status?.device_present" class="mesh-subtitle-badge">Mesh device detected</span>
         </p>
       </div>
       <a
@@ -1801,8 +1802,8 @@ async function downloadAttachment(payload: MeshAttachmentPayload) {
           <div v-else-if="mesh.status" class="mesh-status-grid">
             <div class="mesh-stat">
               <span class="mesh-stat-label">Status</span>
-              <span class="mesh-stat-value" :class="mesh.status.device_connected ? 'text-green' : mesh.status.enabled ? 'text-orange' : 'text-muted'">
-                {{ mesh.status.device_connected ? 'Broadcasting' : mesh.status.enabled ? 'Connecting...' : 'Disabled' }}
+              <span class="mesh-stat-value" :class="mesh.status.device_connected ? 'text-green' : mesh.status.device_present ? 'text-orange' : mesh.status.enabled ? 'text-orange' : 'text-muted'">
+                {{ mesh.status.device_connected ? 'Broadcasting' : mesh.status.device_present ? 'Device detected — connecting' : mesh.status.enabled ? 'Connecting...' : 'Disabled' }}
               </span>
             </div>
             <div class="mesh-stat">