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

Commit A fixes a genuine correctness bug (bipartite chain oscillation on star topologies) with a principled algorithmic correction grounded in the cited paper, plus solid regression tests (Rust + Clojure fixtures) proving the fix. Commit B is a substantial refactor (GroupState -> ScopeVotes, deriving edges on demand) that improves architecture and removes cached-state bugs risk, but it is churn-heavy, touches many files for a design preference, and doesn't fix a user-visible bug or add new guarantees beyond what A already established.