Untrack the host env file (git rm --cached, kept on disk for the boocoder
service) and widen .gitignore to .env.* (re-including .env.example) so env
files no longer get committed. The file's prior contents (dev DB password +
internal Tailscale URLs; no API keys) remain in history — left as-is given the
single-user Tailscale-only threat model.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>