The reference/ tree (OpenCode, Codex, Hermes, Claude Code 2.1.88, etc., ~0.5GB)
was partially tracked (287 files) from an earlier accidental add. Per the
"reference is working-copy only" decision (DD §23), this removes all reference/
files from the index (disk copies retained) and adds a root .gitignore rule so
future commits never pull third-party / leaked source into the repo.
No documentation or source-of-truth content changed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
