abdulrehman958280-max/blackhole ? reverse-engineered prompt

Build me an Android app called BlackHole that lets people download videos from a bunch of popular platforms like YouTube, TikTok, Instagram, Facebook, X, Snapchat, Reddit, Pinterest, Twitch, and similar sites using the Cobalt Tools API.

I want the experience to be simple. If someone shares a video link from another app, BlackHole should show up in the share menu and download it. They should also be able to copy a video URL, paste it into the app, and tap a download button. Please include a way to use custom Cobalt instances too, since that’s important for reliability.

Make it feel like a modern Android 12 app with Monet theming and a clean, friendly interface. Show clear status messages while it’s working, handle errors nicely, and keep the flow as straightforward as possible. If you need to look up current docs online for anything, go ahead and do that.