~x-ai/grok-latest → A (3:1)

A is a precise core bugfix: it replaces the incorrect weight-sum d_max with the paper's degree-based d_max so Rank Centrality is aperiodic and star topologies converge to the right stationary distribution (π=1/2,1/4,1/4) instead of oscillating to uniform, backed by targeted Rust and end-to-end Clojure regression fixtures. B is a large but mostly structural URLs/routing refactor (concatenated room segments, helpers, YouTube normalization) whose lasting substance is secondary to the ranking correctness fix.