A disk that filled in the middle ended a download after four tries with an error that named no cause, and an unpack
with half a folder. The rest of a download, the build tools with their unpacked size, an update's archive and a
mod's zip are now measured against the free space first, and the refusal says how much is needed and how much is
free; a disk that fills during a download is named as full at once.
Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>