Drop ~/.config/zsh/{env,interactive,login} modules. PATH and local.zsh
live in .zshenv; interactive UX is a single .zshrc again. Deploy only
installs the three stubs and removes obsolete trees/examples.
Replace the local/ directory of split env/login/interactive files with
one always-on local.zsh sourced from .zshenv. Deploy migrates old
fragments and never overwrites local.zsh.
Jeffrey