openai/gpt-chat-latest → A (3:2)

Side A makes a substantive change to the core pair-selection algorithm by introducing component-aware bridge priorities, rank-based refinement ('zip' ordering) once a pool is connected, and adds targeted tests covering the new behavior. Side B mainly wires an existing capability into the UI and routing by adding pool-scoped `/vote` navigation and context propagation; while useful, it is largely integration work built on the underlying pair-selection logic rather than improving that logic itself.