openai/gpt-chat-latest → A (3:2)

Side A fixes multiple functional issues: it correctly passes the browser agent as an out-of-band delegate option instead of embedding it in DSL text, prevents incorrect fallback to all items when the sibling comparison pool is too small by returning no next pair, removes an unnecessary swap control, and consistently renames the compare route from `/vote/compare` to `/vote` across server code and tests. Side B adds useful UI improvements such as displaying pairwise vote counts and making the pin HUD perform an unpin action, but these are primarily feature and UX enhancements rather than correcting core behavior.