Add shared nginx-proxy role; deploy Hermes in Docker; rename Paperclip

nginx-proxy (new role):
- Shared nginx + certbot under /opt/nginx, replacing the copies that
  lived inside the Paperclip compose project
- Apps publish via tasks_from: add_vhost (cert marker -> issue cert ->
  write vhost -> nginx -t -> reload); a vhost that fails nginx -t is
  rolled back
- Certs issued one per domain via Cloudflare DNS challenge; domains
  registered as marker files in cert-domains/; optional LE staging
- Stock nginx.conf plus conf.d (directory mounts, not single-file
  mounts); catch-all server drops unknown Host/SNI
- Containers renamed to nginx and certbot

hermes_docker (new role):
- Official Hermes image, host networking, gateway and dashboard bound
  to loopback and published through nginx-proxy
- Dashboard login via basic-auth provider, secrets from the vault
- Main model set from hermes_model (fantasmic endpoint, key from vault);
  config.yaml overrides are merged from a 0600 staged file that is
  removed afterwards, so the key never appears in a command line
- Data dir owner-only (HERMES_HOME_MODE=0700)

paperclip-docker:
- Remove nginx, certbot and docker-compose download tasks; deploy with
  community.docker.docker_compose_v2 (idempotent, remove_orphans)
- Stop passing the Cloudflare token and certbot email to the Paperclip
  container via env_file
- Bind Postgres to 127.0.0.1 (host networking exposed it on all
  interfaces); stop chowning pgdata, which the postgres image owns
- Handler recreates the paperclip service so .env changes apply
- Domain m-v.wdw-labs.cloud -> cranium-command.wdw-labs.cloud

Playbooks:
- Add day1_deploy_nginx_proxy.yml and day1_deploy_hermes_docker.yml
- deploy_paperclip_stack.yml: run nginx-proxy before paperclip-docker,
  CLI-based container checks (no Docker SDK dependency)
- Remove deploy-hermes.yml

Host vars: add nginx_proxy_certbot_email and nginx_proxy_certbot_staging
(staging stays on until the switch to real certs).

ansible/roles/hermes_docker_backup/templates/docker-compose.yml.j2

@@ -0,0 +1,30 @@
+# Managed by Ansible (hermes_docker role)
+services:
+  hermes:
+    image: {{ hermes_image }}
+    container_name: {{ hermes_container_name }}
+    restart: unless-stopped
+    network_mode: {{ hermes_network_mode }}
+    command: gateway run
+    shm_size: "{{ hermes_shm_size }}"
+    env_file:
+      - {{ hermes_secrets_env_file }}
+    environment:
+{% if hermes_dashboard_enabled | bool %}
+      HERMES_DASHBOARD: "1"
+      HERMES_DASHBOARD_HOST: "{{ hermes_dashboard_host }}"
+      HERMES_DASHBOARD_PORT: "{{ hermes_dashboard_port }}"
+      HERMES_DASHBOARD_PUBLIC_URL: "{{ hermes_public_url }}"
+{% endif %}
+{% if hermes_api_server_enabled | bool %}
+      API_SERVER_ENABLED: "true"
+      API_SERVER_HOST: "{{ hermes_api_server_host }}"
+      API_SERVER_PORT: "{{ hermes_gateway_port }}"
+{% endif %}
+    volumes:
+      - {{ hermes_data_dir }}:/opt/data
+    deploy:
+      resources:
+        limits:
+          memory: {{ hermes_memory_limit }}
+          cpus: "{{ hermes_cpu_limit }}"

ansible/roles/hermes_docker_backup/templates/hermes-secrets.env.j2

@@ -0,0 +1,8 @@
+# Managed by Ansible (hermes_docker role) - do not edit
+# Single quotes keep compose from interpolating '$' inside hashes/secrets.
+HERMES_DASHBOARD_BASIC_AUTH_USERNAME={{ hermes_dashboard_username }}
+HERMES_DASHBOARD_BASIC_AUTH_PASSWORD_HASH='{{ vault_hermes_dashboard_password_hash }}'
+HERMES_DASHBOARD_BASIC_AUTH_SECRET='{{ vault_hermes_dashboard_secret }}'
+{% if hermes_api_server_key | length > 0 %}
+API_SERVER_KEY='{{ hermes_api_server_key }}'
+{% endif %}