~anthropic/claude-sonnet-latest → A (6:4)

Side A delivers a substantial, working feature (private room UI, session cookies, web posting form, room-scoped routing) that materially extends the application's capabilities, despite including some noisy/unpolished artifacts (plan2.md AI chat log). Side B is a solid internal refactor (newtype deref, canonical item plumbing) improving type-safety and reducing stringly-typed code, but it's lower-impact churn with no new user-facing capability, so it contributes less lasting value despite being cleaner.