- build-usb.sh now patches the ISO's grub.cfg with xorriso to add 'autoinstall' kernel param (skips confirmation prompt) and reduces GRUB timeout from 30s to 5s - Disable and remove cloud-init on the installed system to prevent boot delays on air-gapped network - Fix ISO size calculation to use patched ISO for CIDATA partition offset Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>