- Added root privilege check (must be run with sudo)
- Added removal of build logs (build.log, build_retry.log)
- Added removal of .build directory
- Added removal of cache directory
- Added removal of all ISO files (*.iso)
- Added automatic unmounting of chroot filesystems (dev/pts, dev/shm, proc, sys, etc.)
- Added force unmount for any remaining mounted filesystems
- Ensures clean state for subsequent builds
- Prevents permission issues during cleanup