The generated script calls the separate `usage` CLI at completion time, so add `pkgs.usage` to `home.packages` whenever mise is installed. Stub it on Darwin test runs via `tests/darwinScrublist.nix`.
The generated script calls the separate `usage` CLI at completion time, so add `pkgs.usage` to `home.packages` whenever mise is installed. Stub it on Darwin test runs via `tests/darwinScrublist.nix`.