EpicGames/raddebugger ? reverse-engineered prompt

Build me this RAD Debugger project so I can run it locally from the repo.

I want the main debugger app to compile cleanly and launch on my machine, and if there are any missing pieces or setup issues, please fix them too. Use the existing build scripts if they work, and make sure the default build produces the debugger executable in the build folder. If anything in the README is outdated or unclear, update it so a normal person can follow the steps without guessing.

If you need to check current docs or tool instructions online, go ahead and do that. Please keep the changes focused on getting the project building and runnable first, and make sure the basic tests or build checks still pass after your changes.