openai/gpt-chat-latest → A (3:2)

Side A introduces a substantial architectural improvement by separating ranking computation from cached reads, adding a settlement worker that batches vote persistence and score recomputation, warming the cache at startup, and switching UI rendering to read-only access for faster requests. Although it also removes the demo counter, the enduring value comes from the new cached ranking and asynchronous settlement design, whereas Side B primarily adds a useful but feature-specific pool-scoped voting workflow by threading an optional pool parameter through routing, navigation, and pair selection.