~x-ai/grok-latest → A (3:1)

A’s lasting value is the forum modularization—extracting coherent units (nav, ingest, access, new_thread, room_members) from a monolithic forum.rs and tightening RPC helpers—which improves long-term structure of core HTML UI. B is a correct but narrow cleanup: dropping unused vote_compare_post_success_js parameters and the preview morph, valuable hygiene with much smaller project impact (A’s sample-fixture addition is incidental noise).