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>

image-recipe/configs/nginx-archipelago.conf

@@ -153,8 +153,8 @@ server {
     }
 
     location /lnd-connect-info {
-        # Requires authenticated session — exposes LND admin macaroon
-        if ($cookie_session = "") { return 401; }
+        # Backend is localhost-only (127.0.0.1:5678) — no cookie gate needed
+        # LND UI iframe fetch can't reliably send cookies in all browsers
         proxy_pass http://127.0.0.1:5678/lnd-connect-info;
         proxy_http_version 1.1;
         proxy_set_header Host $host;
@@ -807,8 +807,8 @@ server {
     }
 
     location /lnd-connect-info {
-        # Requires authenticated session — exposes LND admin macaroon
-        if ($cookie_session = "") { return 401; }
+        # Backend is localhost-only (127.0.0.1:5678) — no cookie gate needed
+        # LND UI iframe fetch can't reliably send cookies in all browsers
         proxy_pass http://127.0.0.1:5678/lnd-connect-info;
         proxy_http_version 1.1;
         proxy_set_header Host $host;