~x-ai/grok-latest → B (2:5)

B delivers core product domain work: intelligent bridge/unvoted pair selection (`pair.rs`), a full `/vote` compare UI with in-place edge-history morphing, and lasting ID normalization via `ItemId::from_storage`. A is valuable (demo removal + settlement worker/ranking cache) but is narrower infrastructure cleanup relative to B’s ranking-UX and pair-graph design.