- Thay mockDelta bằng getDelta30d: hiển thị "—" khi API chưa có priceDelta30d - Cải thiện row hover/active bằng design tokens (active:bg-accent/10, duration-100) - Viết 16 Vitest tests: render, sort, toggle view, filter bar, navigation Co-Authored-By: Paperclip <noreply@paperclip.ing>