Initial Ansible automation for hobbs.farm infrastructure

Complete IaC covering:
- 14 roles: common, docker, traefik, vaultwarden, monitoring, media, matrix,
  home_assistant, frigate, adguard, gitea, semaphore, openclaw, security, backup
- Inventory for all hosts (Peggy, Bart, Yoda, NAS, Firewalla)
- Stack playbooks: core-infrastructure, monitoring, media, communication,
  automation, smarthome, security-hardening
- Maintenance playbooks: update-containers, backup, health-check
- Production Docker Compose templates with Traefik labels
- Security hardening (sysctl, auditd, UFW, fail2ban)
- Automated backups with retention policy

roles/traefik/templates/docker-compose.yml.j2

@@ -0,0 +1,46 @@
+services:
+  traefik:
+    image: {{ traefik_image }}
+    container_name: traefik
+    restart: unless-stopped
+    security_opt:
+      - no-new-privileges:true
+    ports:
+      - "80:80"
+      - "443:443"
+    environment:
+      CF_DNS_API_TOKEN: {{ cloudflare_api_token }}
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - {{ traefik_data_dir }}/acme/acme.json:/acme.json
+      - {{ traefik_data_dir }}/dynamic:/dynamic
+    command:
+      - --api.dashboard={{ traefik_dashboard_enabled | lower }}
+      - --log.level={{ traefik_log_level }}
+      - --providers.docker=true
+      - --providers.docker.exposedbydefault=false
+      - --providers.docker.network={{ docker_network_name }}
+      - --providers.file.directory=/dynamic
+      - --providers.file.watch=true
+      - --entrypoints.web.address=:80
+      - --entrypoints.web.http.redirections.entrypoint.to=websecure
+      - --entrypoints.websecure.address=:443
+      - --certificatesresolvers.cloudflare.acme.dnschallenge=true
+      - --certificatesresolvers.cloudflare.acme.dnschallenge.provider=cloudflare
+      - --certificatesresolvers.cloudflare.acme.email={{ traefik_acme_email }}
+      - --certificatesresolvers.cloudflare.acme.storage=/acme.json
+      - --certificatesresolvers.cloudflare.acme.dnschallenge.resolvers=1.1.1.1:53,1.0.0.1:53
+    labels:
+      traefik.enable: "true"
+      traefik.http.routers.traefik.rule: "Host(`{{ traefik_dashboard_host }}`)"
+      traefik.http.routers.traefik.entrypoints: websecure
+      traefik.http.routers.traefik.tls.certresolver: cloudflare
+      traefik.http.routers.traefik.tls.domains[0].main: "{{ domain }}"
+      traefik.http.routers.traefik.tls.domains[0].sans: "*.{{ domain }}"
+      traefik.http.routers.traefik.service: api@internal
+    networks:
+      - {{ docker_network_name }}
+
+networks:
+  {{ docker_network_name }}:
+    external: true