~anthropic/claude-sonnet-latest → A (3:1)

Side A fixes a real bug (vote compare highlighting/polarity) with a targeted rank_row_style fix, added unit tests verifying the fix, and matching CSS/JS slider polarity corrections—concrete, testable functional value. Side B is purely a mechanical dedup/refactor (removing a stale duplicate forum.rs since forum/ module already existed), which is useful cleanup but is structural churn with no new tests or behavioral guarantees, and its diff is dominated by pre-existing code being relocated rather than newly added value.