fix: LND Connect — remove nginx cookie gate, rebuild LND UI with credentials

- Nginx cookie check removed for /lnd-connect-info — backend is
  localhost-only so no external access possible. Browsers (especially
  Brave) don't reliably send SameSite=Lax cookies from iframe fetches.
- LND UI source restored from archive with credentials: 'include'
- Discover.vue install banner removed (inline card progress only)
- Server.vue: Connectivity → Tor Status, using tor.list-services

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker/lnd-ui/Dockerfile

@@ -0,0 +1,22 @@
+FROM docker.io/library/nginx:alpine
+
+# Copy the HTML file
+COPY index.html /usr/share/nginx/html/
+COPY tailwind.css /usr/share/nginx/html/
+COPY qrcode.js /usr/share/nginx/html/
+
+# Create directories for assets
+RUN mkdir -p /usr/share/nginx/html/assets/img/app-icons && \
+    mkdir -p /usr/share/nginx/html/assets/img
+
+# Copy assets
+COPY lnd.svg /usr/share/nginx/html/assets/img/app-icons/
+COPY bg-web5.jpg /usr/share/nginx/html/assets/img/
+COPY bg-intro.jpg /usr/share/nginx/html/assets/img/
+
+# Copy nginx config
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]