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-ctl-hlth-btrfs/files/sys-ctl-hlth-btrfs.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+exit_code=0
+for path in $(btrfs filesystem show | awk '/ path /{print $NF}')
+do
+  echo "Checking health for $path..."
+  result=$(btrfs device stats $path)
+  echo "$result"
+  regex='\.(.*)_errs(\s*)[1-9]'
+  [[ "$result" =~ $regex ]] && echo "Errors found!" && exit_code=1;
+done
+exit $exit_code