The global .gitignore '*.exe' rule silently excluded netkvmp.exe + netkvmco.exe when the
NetKVM driver was committed, so only inf/sys/cat shipped. netkvm.inf REQUIRES netkvmp.exe
([SourceDisksFiles] + netkvmp.CopyFiles), so Add-WindowsDriver failed every build with 'the
driver package could not be installed' -> no virtio NIC driver -> no VM network. Un-ignore
windows/drivers/** and force-add the referenced binaries.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>