The previous Python/Flask app under docs/reference/ was kept as a visual
design reference while bootstrapping the new frontend. That's well past
done, and 85 files of dead code just add noise to search and exploration.
Remove it (recoverable from history if needed) and update CLAUDE.md: keep
the design tokens, drop the now-dead pointer at the folder.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>