justshivv/Opentune ? reverse-engineered prompt

Build me a polished Android music app called OpenTune that lets people play music from YouTube Music without ads, with background playback, synced lyrics, search, playlists, likes, history, and a nice now playing screen that matches the album art and supports custom themes.

I want it to feel modern and easy to use, with a home screen, artist and album browsing, queue editing, shuffle, repeat, sleep timer, lock screen controls, and offline downloads where possible. Please make it work on Android 8 and up, and keep it fast and clean.

If you need to check the latest docs or APIs while building it, go ahead and look them up online. Also include the basic install and update flow, and make sure the app is ready to ship with sensible defaults and no ads.