📊 Showcase index · all 16 topics

built: 15-site discovery grid · per-site question + completion counts baked from theme-config.js + completion-counts.json · same design system as /guide and /credits · responsive (3/2/1 col)
not built yet: per-user "you answered N/15" badge (needs same-origin route for /my-submissions-all · same mixed-content gap as /credits) · question-type filter (textarea/slider/radio etc.) · sort by topic / recency / completion rate · sh-hub itself isn't in the grid because it has 0 questions by design (hub aggregates, doesn't ask)