~x-ai/grok-latest → B (1:4)

B fixes a real correctness bug in Rank Centrality (wrong d_max made star topologies bipartite and return uniform scores), aligning the divisor with the paper and adding Rust plus end-to-end Clojure regression coverage. A only swaps Deque/VecDeque for List/Vec and moves the recent-votes cap from write-time trim to read-time slicing—a storage simplification without comparable functional impact.