~x-ai/grok-latest → B (2:3)

B redesigns the core product surface: it replaces many REST handlers with a batch RPC API, splits rooms (permission boundary) from forum thread tags in events/reducer state, and threads that model through CLI, types, and tests. A is high-value operational work (Fly deploy, CI gate, /watch audit UI, emission retries and status SSE), but it overlays constitution.py rather than changing enduring domain architecture, so B edges it on lasting design despite A’s polish.