Polish pass: micro-interactions on admin and storefront pages

Admin design system:
- AdminCard: hover shadow elevation
- AdminTable: enhanced empty state, row hover
- AdminBadge: tracking-wide typography
- AdminButton: active scale press feedback
- AdminFormElements: input transitions
- AdminFilterBar: search input polish
- PageHeader: icon hover scale, chevron separator
- AdminToggle: glow effect, thumb shadow
- AdminEmptyState: icon hover, spacing
- AdminPagination: active solid bg, ellipsis

Storefronts (tuxedo + indian-river-direct):
- Button hover lifts (-translate-y-0.5)
- Shadow elevations on hover
- Button press feedback
- Consistent timing (duration-200)
- Product card image zoom
- FAQ empty state fix

src/components/admin/design-system/AdminFormElements.tsx

@@ -58,7 +58,7 @@ export function AdminTextInput({
       value={value}
       onChange={onChange}
       disabled={disabled}
-      className={`w-full rounded-xl border border-[var(--admin-border)] bg-[var(--admin-card-bg)] px-3 py-2.5 text-sm text-[var(--admin-text-primary)] outline-none focus:border-[var(--admin-accent)] focus:ring-2 focus:ring-[var(--admin-accent)]/20 placeholder:text-[var(--admin-text-muted)] disabled:opacity-50 ${className}`}
+      className={`w-full rounded-xl border border-[var(--admin-border)] bg-[var(--admin-card-bg)] px-3 py-2.5 text-sm text-[var(--admin-text-primary)] outline-none focus:border-[var(--admin-accent)] focus:ring-2 focus:ring-[var(--admin-accent)]/20 placeholder:text-[var(--admin-text-muted)] disabled:opacity-50 transition-all duration-150 ${className}`}
       maxLength={maxLength}
       autoComplete={autoComplete}
       step={step}