~x-ai/grok-latest → A (4:1)

Side A lands core lasting domain machinery (rank-centrality with the #146 star-topology fix and tests, event reducer for scopes/rooms/ingests/votes, HTML form $form templates + ui_action parsing, vote-compare page, and a large tested URL parser graph), while B only polishes the fixture DX (cargo-watch, persistent fixture-data/, preferred port 8080) plus a small room page markup trim.