fix: harden OTA updates, AIUI desktop gap, LND no-proxy

- update.rs: post-OTA probe falls back to http://127.0.0.1/ on connect
  error (nginx binds :80, not :443) so good updates are no longer rolled
  back; recover stuck update_in_progress; avoid ETXTBSY on running binary
- LND: REST client bypasses proxy, GET newaddress p2wkh, wallet
  readiness/unlock after restart
- Dashboard.vue: chat route back to plain h-full (desktop bottom-gap fix)
- vite.config.ts: dev-only /aiui proxy
- tests/release/run.sh: release gate harness (static+frontend+backend)
- CHANGELOG: v1.7.89-alpha notes

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

neode-ui/src/views/Dashboard.vue

@@ -86,8 +86,8 @@
                 <div
                   v-if="route.path === '/dashboard/chat' || route.path === '/dashboard/mesh'"
                   :class="[
-                    'h-full dashboard-scroll-panel mobile-scroll-pad',
-                    route.path === '/dashboard/mesh' ? 'mesh-dashboard-panel' : '',
+                    'h-full',
+                    route.path === '/dashboard/mesh' ? 'dashboard-scroll-panel mobile-scroll-pad mesh-dashboard-panel' : '',
                     mobileTabPaddingTop ? 'overflow-y-auto' : ''
                   ]"
                   :style="{ paddingTop: mobileTabPaddingTop ? (mobileTabPaddingTop + 16) + 'px' : undefined }"