Remove Traefik — use simple port binding for NPM

Stack uses Tailscale + Nginx Proxy Manager, not Traefik.
Client exposes PORT (default 3080) for NPM to proxy to.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -28,7 +28,7 @@ services:
     environment:
       DATABASE_URL: postgresql://postgres:${POSTGRES_PASSWORD}@postgres:5432/ticketing
       JWT_SECRET: ${JWT_SECRET}
-      CLIENT_URL: https://${DOMAIN}
+      CLIENT_URL: ${CLIENT_URL}
       PORT: 3000
     depends_on:
       postgres:
@@ -39,23 +39,16 @@ services:
   client:
     image: ${REGISTRY}/josh/ticketing-client:${TAG:-latest}
     restart: unless-stopped
+    ports:
+      - "${PORT:-3080}:80"
     depends_on:
       - server
     networks:
       - internal
-      - proxy
-    labels:
-      - "traefik.enable=true"
-      - "traefik.http.routers.tickets.rule=Host(`${DOMAIN}`)"
-      - "traefik.http.routers.tickets.entrypoints=websecure"
-      - "traefik.http.routers.tickets.tls.certresolver=letsencrypt"
-      - "traefik.http.services.tickets.loadbalancer.server.port=80"
 
 networks:
   internal:
     driver: bridge
-  proxy:
-    external: true   # Traefik's proxy network
 
 volumes:
   postgres_data: