docs/FRICTION.md: a running log of friction/gotchas/recurring-fixes/unused tooling,
seeded with this session's real signals — raw material for the periodic kaizen
review. docs/TODO.md: schedule building /retro in ~1 week, and record the Claude-setup
decision. (Also carries your earlier backlog edits.)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
