subhra74/xdm ? reverse-engineered prompt

Build me a desktop download manager called Xtreme Download Manager that can grab files much faster than a normal browser download, pause and resume broken downloads, and catch videos from popular streaming sites. I want it to work on Windows, Linux, and Mac, and to integrate with browsers like Chrome, Firefox, Edge, Opera, and Vivaldi so it can take over downloads automatically. It should support regular file downloads, video downloads, and common streaming formats, plus let me convert downloaded videos to MP3 or MP4. Include basics like clipboard monitoring, scheduling, proxy and login support, and an option to shut the computer down when downloads finish. Make it feel polished and easy to use, with a simple main window showing active, completed, and failed downloads. If you need to check current browser extension or build requirements, look them up online and keep it compatible with the project docs.