sindrebroch/ha-magicmirror ? reverse-engineered prompt

Build me a Home Assistant custom integration for MagicMirror that I can install through HACS and then configure from Home Assistant.

I want it to connect to a MagicMirror setup that already has the remote control module and API key enabled, then expose controls inside Home Assistant for the things I’d actually use day to day. That means turning the monitor on and off, changing brightness, showing and hiding MagicMirror modules, and a few handy buttons for rebooting the host, restarting MagicMirror, and refreshing the browser. It should also let me send notifications to the mirror with a title, message, and optional timer and dropdown settings.

If it makes sense, include support for checking and running updates for MagicMirror itself and for modules too. Keep it clean and easy to set up, and make sure it works nicely as a Home Assistant custom component. If you need to check current docs for the MagicMirror remote control API, go ahead and look them up online.