Port Modules/OAM/oam-librenms.sh. Deploys the check_mk agent and systemd socket for LibreNMS monitoring, along with the local plugins: distro, dmi, dpkg, ntp-client, os-updates, postfixdetailed, and postfix-queues. 🤖 Generated with [Crush](https://github.com/charmassociates/crush) Assisted-by: GLM-5 via Crush <crush@charm.land>