build/images.zig owns everything between built binaries and a bootable
volume: the FHS zig-out install tree, boot manifest + capsule, both
FAT32 images, the release ISO, and their check steps. build/qemu.zig
owns run-x86-64 / run-x86-64-gpu and the OVMF probing. The root
build.zig (461 lines, from 1,242 pre-split) now only decides what
ships: kernel + loader, the package list, the bundled boot tree, and
the aggregate test step. The stale commented-out run scaffold is gone.
Boot-image file list unchanged; check-fat-image and check-iso-image
both green.
bc2eb67581