Restart script re-execs itself with sudo when not run as root

The script restarts system services via systemctl, which requires root.
Previously it would only fail per-command when run by an unprivileged
user. Add an EUID guard at the top that re-execs the script through
sudo, preserving the original path and arguments.

scripts/restart-services.sh

@@ -1,5 +1,10 @@
 #!/bin/bash
 
+if [[ $EUID -ne 0 ]]; then
+	exec sudo "$0" "$@"
+	exit 0
+fi
+
 echo "systemctl restart nginx"
 systemctl restart nginx
 sleep 1
@@ -22,3 +27,5 @@ if [ "$failed" -eq 1 ]; then
   exit 1
 fi
 
+exit 0
+