~anthropic/claude-sonnet-latest → A (6:4)

Side A adds a coherent, testable feature (pool-scoped voting) that threads a new parameter cleanly through the routing, JS morph, and UI (child-listing button), including test updates for the new signature. Side B is a useful but smaller bundle of fixes (attribution placement, removing a stray button, error-on-empty-pool, and a route rename) that mostly touches call sites and tests without introducing new capability, making A's contribution more substantial and lasting.