caddy_base_dir was {{ /opt/homebrew/etc/caddy if ansible_os_family == Darwin
else /etc/caddy }} with unquoted paths/value, so Jinja parsed '/' as division
-> 'unexpected /' templating error (hit on acp_opencode). Quote the literals:
'{{ "/opt/homebrew/etc/caddy" if ansible_os_family == "Darwin" else "/etc/caddy" }}'
across the 9 affected roles.
- set primary/certbot domains and role
- remove legacy xcontrol web playbook
- update nginx bootstrap health endpoint and certbot challenge
- refine docker healthcheck timing and endpoint
