~x-ai/grok-latest → B (1:3)

Side B adds a full Reddit API client (~420 lines) with rate limiting, typed serde models, and error handling—substantial new capability—whereas Side A is mostly mechanical clippy/style nits (let-pattern rewrites, unnecessary refs, map_or→is_some_and) plus a missing #[test] attribute and a dead_code allow. Line count favors B because the change is real surface area, not formatting churn.