openai/gpt-chat-latest → A (3:2)

Side A implements a cohesive product feature by extending the vote flow to support pool-scoped comparisons: it adds a new `pool` query parameter, generates initial pairs from a parent's children, preserves pool context through vote submission and next-pair navigation, and exposes the feature with a new "vote on children" UI link. Side B adds valuable developer tooling (`sorterc`) for offline DSL compilation and JSONL validation, but it is workspace-only infrastructure rather than functionality that directly expands the application's behavior.