~x-ai/grok-latest → B (2:5)

B redesigns the core sorter DSL so votes are explanation-first (leading `{...}` then the comparison), with a real parser split/pending-block path and full fixture/docs/UI updates—this permanently changes how every vote is authored. A is solid but narrower: it wires `room create` in the CLI and simplifies rooms by dropping ThreadVisibility/`RoomState` for a `HashSet`, which is useful product plumbing rather than a foundational interaction change.