openai/gpt-chat-latest → B (3:2)

Side B makes a substantive algorithmic improvement to vote pair selection by introducing component-aware bridge priorities, rank-adjacent refinement once the graph is connected, and corresponding tests that validate the new behavior. Side A adds useful theme persistence across pages and login plus room-aware URL helpers, but much of the patch is broad plumbing to thread theme state through handlers, whereas Side B changes a core ranking heuristic with lasting impact on system behavior.