refactor!: replace sys-systemctl with sys-service, add sys-daemon, and rename systemctl_* → system_service_* across repo

- Swap role includes: sys-systemctl → sys-service in all roles
- Rename variables everywhere: systemctl_* → system_service_* (incl. systemctl_id → system_service_id)
- Templates: ExecStart now uses {{ system_service_script_exec }}; add optional RuntimeMaxSec via SYS_SERVICE_DEFAULT_RUNTIME
- Move SYS_SERVICE defaults into roles/sys-service/defaults (remove SYS_SERVICE_ALL_ENABLED & SYS_SERVICE_DEFAULT_STATE from group_vars/07_services.yml)
- Tidy group_vars/all/08_timer.yml formatting
- Introduce roles/sys-daemon:
  - default manager timeouts (timeouts.conf)
  - optional purge of /etc/systemd/system.conf.d
  - validation via systemd-analyze verify
  - handlers for daemon-reload & daemon-reexec
- Refactor sys-timer to system_service_* variables (docs and templates updated)
- Move filter_plugins/filetype.py under sys-service
- Update meta/README to point to official systemd docs
- Touch many roles (backup/cleanup/health/repair/certs/nginx/csp/wireguard/ssd-hdd/keyboard/update-docker/alarm compose/email/telegram/etc.) to new naming

BREAKING CHANGE:
- Role path/name change: use `sys-service` instead of `sys-systemctl`
- All `systemctl_*` vars are now `system_service_*` (e.g., on_calendar, state, timer_enabled, script_exec, id)
- If you have custom templates, adopt RuntimeMaxSec and new variable names

Chat context: https://chatgpt.com/share/68a47568-312c-800f-af3f-e98575446327

roles/sys-timer/README.md

@@ -7,9 +7,9 @@ This role configures a systemd timer to periodically start a corresponding servi
 ## Overview
 
 Optimized for automated task scheduling in a [systemd](https://en.wikipedia.org/wiki/Systemd) environment, this role:
-- Generates a timer unit file for a given service (using the `systemctl_timer_service` variable).
+- Generates a timer unit file for a given service (using the `system_service_timer_service` variable).
 - Reloads and restarts the timer using systemd to ensure that changes take effect.
-- Supports dynamic configuration of scheduling parameters via variables like `systemctl_on_calendar` and `RANDOMIZED_DELAY_SEC`.
+- Supports dynamic configuration of scheduling parameters via variables like `system_service_on_calendar` and `RANDOMIZED_DELAY_SEC`.
 
 ## Purpose
 

roles/sys-timer/templates/dummy.timer.j2

@@ -1,8 +1,8 @@
 [Unit]
-Description=Timer to start {{ systemctl_timer_service }}{{ SYS_SERVICE_SUFFIX }}
+Description=Timer to start {{ system_service_timer_service }}{{ SYS_SERVICE_SUFFIX }}
 
 [Timer]
-OnCalendar={{ systemctl_on_calendar }}
+OnCalendar={{ system_service_on_calendar }}
 RandomizedDelaySec={{ RANDOMIZED_DELAY_SEC }}
 Persistent={{ persistent | default('false') }}
 

roles/sys-timer/vars/main.yml

@@ -1 +1 @@
-sys_timer_file: "{{ systemctl_timer_service }}{{ SYS_TIMER_SUFFIX }}"
+sys_timer_file: "{{ system_service_timer_service }}{{ SYS_TIMER_SUFFIX }}"