Refactor systemctl services and timers

- Unified service templates into generic systemctl templates
- Introduced reusable filter plugins for script path handling
- Updated path variables and service/timer definitions
- Migrated roles (backup, cleanup, repair, etc.) to use systemctl role
- Added sys-daemon role for core systemd cleanup
- Simplified timer handling via sys-timer role

Note: This is a large refactor and some errors may still exist. Further testing and adjustments will be needed.

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

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