~anthropic/claude-sonnet-latest → A (6:4)

Side A fixes a real visual/UX bug (colors depending on list position/group size rather than actual vote mass) with a principled min-max normalization and thorough new tests. Side B is a small, low-risk cleanup removing dead-code guard, but changes behavior slightly (items now register even with zero-ratio votes) with less certain downstream impact and a much smaller scope.