~x-ai/grok-latest → A (10:1)

Commit A is a foundational redesign: REST endpoints collapse into a batch RPC API, events/reducer split permission boundaries (rooms) from forum channels (thread tags), and the CLI gains public/private scoping— lasting structural value across server, types, tests, and client. Commit B only adds a RoomList RPC + CLI subcommand with isolation tests, a useful but narrow feature that sits on top of that architecture.