Add file provider to Traefik for host-based services

Enable dual provider support (Docker + File) to allow routing both containerized services and services running on the host machine. Add dynamic.yml with routes for nginx-based websites (agence66.fr, walter-coiffure.fr) pointing to host gateway IP.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -11,6 +11,7 @@ services:
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
       - ./traefik.yml:/etc/traefik/traefik.yml:ro
+      - ./dynamic.yml:/etc/traefik/dynamic.yml:ro
       - ./acme.json:/acme.json
     networks:
       - traefik-net