Introduce a dedicated publish-containers workflow triggered after stable releases.
Unify container build and publish logic via scripts, add buildx-based multi-tag publishing,
default base image resolution, and Arch alias tags for latest/version/stable.
https://chatgpt.com/share/693c836b-0b00-800f-9536-9e273abd0fb5
* Move the Nix bootstrap from *scripts/init-nix.sh* to *scripts/nix/init.sh* with split-out helpers in *scripts/nix/lib/*
* Update Arch/Debian/Fedora packaging hooks to call */usr/lib/package-manager/nix/init.sh*
* Keep bootstrap behavior the same while improving maintainability and reuse
https://chatgpt.com/share/693c7159-b340-800f-929e-2515eeb0dd03