~x-ai/grok-latest → A (2:1)

A adds a core RPC/CLI capability (RoomList) with types, auth-gated server logic, and integration tests that lock in per-user grant isolation—lasting product and security surface. B improves Reddit-specific display (image/link fields, render helpers, CSS) with a focused unit fixture, which is real UX value but narrower presentation polish than a multi-user room discovery API.