Populate the Build & Test, Architecture Overview, and Conventions
& Patterns sections of CLAUDE.md with context captured during the
phase-1 implementation work. Highlights the non-obvious gotchas
(http.Server.Shutdown not interrupting active conns; bd link
direction; bd init auto-committing) so future sessions don't
re-discover them.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>