~x-ai/grok-latest → B (2:3)

B fixes core ownership mechanics: rank_commits no longer short-circuits on a single contributor, pairwise-ranks every eligible commit, rolls scores into contributor_ranking, and exposes per-commit rankings on epoch pages—with tests for the multi-commit same-author case. A’s paste-and-go rewrite correctly deletes an unreliable ~1.8k-line keystroke graph and race-prone client path, but that is a UI simplification of one feature, not a change to how lasting value is measured or paid out.