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/unit/roles/svc-opt-ssd-hdd/test_storage_optimizer.py

@@ -8,7 +8,7 @@ import sys
 def load_optimizer_module():
     module_path = os.path.abspath(os.path.join(
         os.path.dirname(__file__),
-        '..', "..", "..","..",'roles', 'svc-opt-ssd-hdd', 'files', 'svc-opt-ssd-hdd.py'
+        '..', "..", "..","..",'roles', 'svc-opt-ssd-hdd', 'files', 'script.py'
     ))
     spec = importlib.util.spec_from_file_location('storage_optimizer', module_path)
     optimizer = importlib.util.module_from_spec(spec)