liriliri/eruda ? reverse-engineered prompt

Build me a lightweight in page console for mobile browsers that I can drop into any website with one script tag and call to initialize.

I want it to let me see console logs, warnings, and errors directly on my phone, and make it easy to inspect what is happening in the page without using desktop devtools. It should open as a small overlay that does not get in the way, but can expand when I need more detail. Make it feel polished and usable on touch screens, with a simple way to clear output and keep reading new messages as they come in.

Please make it easy to include from a CDN or local build, and keep the setup minimal. If you need to check current docs or best practices while building it, go ahead and look them up online.