~x-ai/grok-latest → A (2:1)

A lands durable product correctness: cookie/SSR theme switching with auth cookie re-issue, plus room-aware wire URLs (`item_path_for_api_in_room`, `forum_thread_web_url`) wired through RPC with tests—fixing private-room API links and CLI hints. B adds a solid Reddit fetch worker (OAuth, rate limits, parse/map tests), but it is a narrower external-import foundation still marked incomplete versus A’s core API/UX paths.