~anthropic/claude-sonnet-latest → A (8:1)

Side A implements a real feature end-to-end (CLI `room create` command, RPC handler, event schema simplification from HashMap to HashSet, docs, and tests updated across multiple files), delivering working, tested functionality. Side B merely deletes two stale planning markdown files with no code changes, which is housekeeping value at best and contributes no functional improvement to the project.