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/web-app-nextcloud/docs/Update.md

@@ -43,8 +43,8 @@ and disable any non-functioning apps.
 ```bash
 cd {{ PATH_DOCKER_COMPOSE_INSTANCES }}nextcloud &&
 docker-compose down &&
-docker-compose exec -i database mysql -u nextcloud -pPASSWORT nextcloud < "/Backups/$(sha256sum /etc/machine-id | head -c 64)/sys-bkp-docker-2-loc/latest/nextcloud_database/sql/backup.sql" &&
-cd {{ PATH_ADMINISTRATOR_SCRIPTS }}sys-bkp-docker-2-loc &&
+docker-compose exec -i database mysql -u nextcloud -pPASSWORT nextcloud < "/Backups/$(sha256sum /etc/machine-id | head -c 64)/sys-ctl-bkp-docker-2-loc/latest/nextcloud_database/sql/backup.sql" &&
+cd {{ PATH_ADMINISTRATOR_SCRIPTS }}sys-ctl-bkp-docker-2-loc &&
 bash ./recover-web-app-from-local.sh "nextcloud_data" "$(sha256sum /etc/machine-id | head -c 64)"
 ```
 

roles/web-app-nextcloud/vars/system.yml

@@ -9,7 +9,7 @@ nextcloud_system_config:
 
   - parameter: "maintenance_window_start"
     type: "integer"
-    value: "{{ on_calendar_nextcloud }}"
+    value: "{{ SYS_SCHEDULE_MAINTANANCE_NEXTCLOUD }}"
 
   - parameter: "default_phone_region"
     value: "{{ HOST_LL | upper }}"