missingStylesheets() names an import the views need, but nothing named
one they had stopped needing: when SealShare's last card left its views,
card.css stayed in every page until a reviewer noticed by hand.
unusedStylesheets($cssEntry) reads the entry's direct package imports
and reports each one no scanned view needs, counting what a needed
stylesheet imports itself and foundation.css always; an entry that
imports all.css is left alone. Opt-in, beside missingStylesheets()
(plan step 46).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
