openai/gpt-chat-latest → A (9:1)

Side A introduces substantial new project functionality across multiple areas: a ranking engine with connected-component and rank-centrality logic plus tests, a reducer for event-driven state, UI action parsing with JSON form templates, browser plumbing, and a large parser/autocomplete system. Side B is a focused refinement that adds a CLI `room create` command and simplifies room handling by removing the room visibility concept (replacing a room map with a `HashSet` and updating RPC/tests/docs), which is useful but comparatively incremental.