Ayfri/MCUS ? reverse-engineered prompt

Build me a simple Python command line tool that checks whether a Minecraft username is available and keeps checking it on a timer until it becomes free.

I want to run it with a username and an optional interval, and if I don’t pass a username it can reuse the last one I checked. Please make it easy to launch on Windows, ideally with a small batch file, and have it work with Python directly too. When the username becomes available, I want a clear console message, a Windows notification, and a text file created on my desktop with the username, a link to change the Minecraft name, and the time it was found. If you can, add optional Discord webhook alerts through a simple env file. Keep the output clean and easy to read, with timestamps and a little banner at startup. If you need to look up current docs for any libraries or Minecraft username checking details, feel free to do that.