Generalise the deployer beyond Ubuntu with a distro registry and a new
--distro flag (ubuntu default, debian, fedora). Each distro keeps its
own codenames, osinfo ids and per-version minimum RAM/disk. Image URLs
are built per distro (Ubuntu current/, Debian latest/, Fedora resolved
from the release index since it has no "latest" link).
Add --list-images to print the whole catalogue with specs, exposed in
the todo menu ("List available images and specs"); the deploy/download
flows now prompt for the distro first.
Resilient osinfo: when the local osinfo-db does not know an id (e.g.
ubuntu26.04, fedora43+), fall back to virt-install detect=on,require=off
instead of failing. Ubuntu 26.04 (resolute) is now enabled.
Also: throttle the download progress to integer-percent steps (single
updating line on a TTY, at most 101 lines when captured by the menu),
and skip the spurious "network is already active" error by checking the
libvirt network state before net-start.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>