~x-ai/grok-latest → A (2:1)

A fixes a core Rank Centrality correctness bug (weight-sum d_max → degree-based d_max) that left star topologies bipartite and stuck at uniform scores, aligning the Markov matrix with Negahban–Oh–Shah and adding targeted Rust/Clojure regressions. B’s lasting pieces are the external-root host listing fix and GitHub card rendering, but much of the diff is a resolvers/ move, HTML/CSS presentation, and feature polish rather than foundational algorithm repair.