Refactor systemctl services and categories due to alarm bugs

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.

roles/sys-bkp-provider/README.md

@@ -8,7 +8,7 @@ This role sets up and manages the host as a backup provider. It establishes the
 
 Optimized for automated backup processes, this role:
 - Configures the host to provide backup services.
-- Integrates seamlessly with the [sys-bkp-provider-user](../sys-bkp-provider-user/README.md) and [sys-cln-bkps-timer](../sys-cln-bkps-timer/README.md) roles.
+- Integrates seamlessly with the [sys-bkp-provider-user](../sys-bkp-provider-user/README.md) and [sys-timer-cln-bkps](../sys-timer-cln-bkps/README.md) roles.
 - Lays the foundation for secure and extensible backup operations.
 
 ## Purpose

roles/sys-bkp-provider/tasks/main.yml

@@ -4,6 +4,6 @@
       name: '{{ item }}'
     loop:
     - sys-bkp-provider-user
-    - sys-cln-bkps-timer
+    - sys-timer-cln-bkps
   - include_tasks: utils/run_once.yml
   when: run_once_sys_bkp_provider is not defined