v0.51.0
Guard zsh prompt prefix updates (#555) ## Summary - only capture `_HERMIT_OLD_PS1` and prepend the Hermit prompt once in `update_hermit_ps1` - avoid re-prepending the Hermit prompt on later precmd runs once the original prompt has been recorded ## Testing - `go test ./...` Co-authored-by: Amp <amp@ampcode.com>