pets-setup

Run the installer and report what it wired:

command -v pets >/dev/null 2>&1 && pets install --harness=claude || echo "not-installed"

If that printed not-installed, the binary is missing. Do not try to install it
yourself - print these two options and stop:

brew install TevvvB/tap/termagitchi
go install github.com/TevvvB/termagitchi/cmd/pets@latest

Otherwise relay the installer's own output. It backs up any config it touches, and
pets uninstall reverses it. Tell the user to start a new session, because Claude
Code reads the status line and hooks at startup.