~x-ai/grok-latest → A (4:1)

A is a foundational redesign: batch RPC replaces the REST surface, events/reducer separate room scope from forum thread tags (RoomCreated, ScopeId::Room, ingests_by_scope_thread), and the CLI/tests are rewired to that model. B is a high-quality but narrow correctness fix—stable feed anchors on ingest index plus permission filtering—with strong tests, yet it only hardens one path after A’s architecture is in place.