~x-ai/grok-latest → A (7:1)

A introduces a lasting architectural pivot: batched `/api/v0/rpc`, room-scoped content (rooms vs forum threads in events/reducer), and CLI Public/Private scoping that replaces many REST handlers. B is a valuable but narrow fix—correct Reddit children attach via `apply_entity_under_parent` and title labels in the ranking panel—without core model impact comparable to A.