feat: add Nostr VPN, FIPS, Routstr apps with status UIs

Add three new marketplace apps:
- Routstr (v0.4.3): Decentralized AI inference proxy with Cashu payments
- Nostr VPN (v0.3.4): Mesh VPN with Nostr signaling + WireGuard tunnels
- FIPS (v0.1.0): Self-organizing encrypted mesh network

Includes status UI dashboards for headless apps (nostr-vpn-ui, fips-ui)
with usage instructions, node identity display, and container logs.
Nostr identity injected via env vars for all three apps.

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

docker/fips-ui/nginx.conf

@@ -0,0 +1,11 @@
+server {
+    listen 8202;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}