Snapix/SnapAudio — reverse-engineered prompt

Build me an Android app called SnapAudio that gives people a smarter way to listen to music. I want a clean mobile experience where someone can open the app, browse or pick audio, play it, pause, skip around, and get helpful AI powered listening features using Gemini.

Keep it simple enough that it runs as a normal Android app, but make it feel polished with a modern dark interface, clear playback controls, and useful states for loading, empty content, and errors. Store the Gemini API key in an env file and include an example env file so I can add my own key.

Please set up the Kotlin Android project so I can open it in Android Studio and run it on an emulator or real phone. If anything is unclear, make sensible choices and keep the first version focused on working audio playback and the AI listening experience. Look up current docs online if you need to.