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.

tests/integration/test_variable_definitions.py

@@ -218,7 +218,7 @@ class TestVariableDefinitions(unittest.TestCase):
                                 if var in (
                                     'lookup', 'role_name', 'domains', 'item', 'host_type',
                                     'inventory_hostname', 'role_path', 'playbook_dir',
-                                    'ansible_become_password', 'inventory_dir', 'ansible_memtotal_mb'
+                                    'ansible_become_password', 'inventory_dir', 'ansible_memtotal_mb', 'omit'
                                 ):
                                     continue