totonob-byte/lista ? reverse-engineered prompt

Build me a simple web app for working with M3U playlist files.

I already have a few playlist files, and I want a clean way to upload them, view what channels or entries are inside, and quickly search through them. It should let me open a playlist, show the items in a readable list, and make it easy to copy or download the playlist again after I check it. If there are multiple files, I want to switch between them without losing my place.

Keep the interface straightforward and easy to use, with a nice list view, basic filtering, and clear empty states if no file is loaded yet. If you need to look up the current best way to parse M3U files or build the UI, go ahead and check the latest docs online. Make it feel polished, like a small useful tool for managing IPTV style playlists.