feat: add support for user registration toggle and Traefik integration in Docker setup

.env.example

@@ -13,6 +13,9 @@ COOKIE_SECRET=change-me-must-be-at-least-64-characters-long-for-production!!
 
 JWT_EXPIRY_HOURS=24
 
+# Set to false to disable new user registration (existing users can still log in)
+ALLOW_REGISTRATION=true
+
 # Set to true when serving over HTTPS
 SECURE_COOKIE=false
 PRODUCTION=false
@@ -42,3 +45,17 @@ DB_MIN_CONNECTIONS=1
 
 # ── PostgreSQL (optional, uncomment db service in compose.yml first) ──────────
 # POSTGRES_PASSWORD=change-me
+
+# ── Traefik (only needed with compose.traefik.yml) ────────────────────────────
+# External Docker network Traefik is attached to
+TRAEFIK_NETWORK=traefik_proxy
+# Traefik entrypoint (usually websecure for HTTPS, web for HTTP)
+TRAEFIK_ENTRYPOINT=websecure
+# Cert resolver defined in your Traefik static config
+TRAEFIK_CERT_RESOLVER=letsencrypt
+# Public hostnames routed by Traefik
+FRONTEND_HOST=tv.example.com
+BACKEND_HOST=tv-api.example.com
+# When using Traefik, update these to the public URLs:
+# NEXT_PUBLIC_API_URL=https://tv-api.example.com/api/v1
+# CORS_ALLOWED_ORIGINS=https://tv.example.com