bluebuild (159): 'type: files' module fails 'chmod: Operation not
permitted' inside its own bind-mounted /tmp/modules/files/files.sh
under buildah + privileged-podman in our runner. Switch all four
`type: files` modules to `type: copy` (low-level COPY, no chmod, no
helper script needed).
installer-iso (160): livemedia-creator refused build/out which
checkout had already created (Forgejo runner reuses workspace dir
between runs). rm -rf build/out before invocation; mkdir not needed,
livemedia-creator creates the dir itself.
Add livemedia-creator --make-iso pipeline that produces a small
Anaconda installer ISO consuming a CI-buildable variant of the
runtime ostreecontainer kickstart. Disk/LUKS/user blocks dropped
from the CI ks (Anaconda interactive handles them); ostreecontainer
URL pinned to ghcr.io/veilor-org/veilor-os:43. Output split into
1900M chunks; published to Forgejo installer-latest rolling tag.
