Remove backend port exposure and change public-web from port 8082 to 8080. Add backend dependency to public-web service. Remove public-web dependency from nginx service. Add /api/ location block to public-web nginx config with proxy_pass to backend:8080 and proxy headers for Host, X-Real-IP, X-Forwarded-For and X-Forwarded-Proto.
Add public-web service with static landing page for client enrollment and device provisioning. Add public-web container to docker-compose with port 8082. Configure nginx reverse proxy with domain-based routing: admin-vpn.nesterovic.cc for admin interface and vpn.nesterovic.cc for public interface. Add proxy headers for X-Real-IP, X-Forwarded-For and X-Forwarded-Proto to both server blocks. Create public-web Dockerfile with nginx serving