* Rename `config.sh` to `bootstrap_config.sh` to clearly separate installer bootstrap config from Nix system config
* Add `nix_conf_file.sh` to manage `/etc/nix/nix.conf` safely and idempotently
* Ensure `nix-command` and `flakes` are enabled without overwriting existing experimental features
* Invoke Nix config enforcement from `nix/init.sh` during root installation
* Update documentation and ShellCheck annotations accordingly
* Extend CLI git proxy to include `git status`
https://chatgpt.com/share/693d5c4a-bad0-800f-adaf-4719dd4ca377