vpsadminos

Add new vpsAdminOS container image build scripts under `image-scripts/images/IMAGE_NAME`. Use when requests ask to add image build support for a distribution or release such as Ubuntu, Debian, Fedora, Rocky Linux, AlmaLinux, CentOS Stream, Alpine, openSUSE, Arch, Void, Gentoo, NixOS, Devuan, or similar. Covers choosing the closest existing image pattern, creating `build.sh` and `config.sh`, updating `os/configs/image-repository.nix`, integrating the image in `tests/distributions.nix`, running `image-scripts/test@IMAGE_NAME`, fixing build or container-test failures, and preparing a focused commit.

Update Rocky Linux, AlmaLinux, CentOS Stream, Fedora, or all Red Hat-family container image release files in this repository. Use when requests mention `update rocky`, `update almalinux`, `update centos stream`, `update fedora`, `update redhat-family distributions`, or otherwise ask to bump release RPMs under `image-scripts/images/*`. Follow upstream HTTP repo directory listings, update the matching `build.sh` files, run `./test-runner.sh test image-scripts/test@image-name` for each changed image, and keep commits split per changed image directory.