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

Side A introduces a genuinely new, well-tested module (pair.rs) implementing bridge-aware pair selection via connected components, adds a more robust ItemId::from_storage normalization used consistently across reducer/state/reddit import, and refactors the Clojure test harness into a reusable mock-reddit module with new integration/e2e tests. Side B's pool-scoped voting is a reasonable but narrower feature addition that mostly threads an optional pool id through existing vote-compare code with less algorithmic depth and lighter test coverage.