~x-ai/grok-latest → B (2:5)

B fixes a real reducer integrity bug by dropping zero-ratio votes before ensure_item/voted_pairs side effects, eliminating ghost items and false “already voted” state, with a matching test update. A is largely theme UX (cookie/select plumbing threaded through many handlers) plus useful but secondary private-room URL wire helpers—valuable product surface, yet more diffuse and less foundational than the ranking-state correctness fix.