This commit restructures systemctl service definitions and category mappings.
Motivation: Alarm-related bugs revealed inconsistencies in service and role handling.
Preparation step: lays the groundwork for fixing the alarm issues by aligning categories, roles, and service templates.
- Standardize async/poll usage with 'ASYNC_ENABLED | bool'
- Add async/poll parameters to Cloudflare, Nginx, Mailu, MIG, Nextcloud, and OpenLDAP tasks
- Update async configuration in 'group_vars/all/00_general.yml' to ensure boolean evaluation
- Allow CAA, cache, and DNS tasks to run asynchronously when enabled
https://chatgpt.com/share/689cd8cc-7fbc-800f-bd06-a667561573bf