fix: migrate 11 remaining files missed by component sweep

editor-ai, guides, maintenance, scripts, settings, NavItem,
and dashboard active-glow removal.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/dashboard/PerformanceCards.tsx

@@ -70,10 +70,7 @@ export function PerformanceCards() {
         <button
           key={card.label}
           onClick={() => navigate(card.href)}
-          className={cn(
-            'card-interactive p-4 text-left fade-in',
-            i === 0 && 'active-glow'
-          )}
+          className="card-interactive p-4 text-left fade-in"
           style={{ animationDelay: `${400 + i * 60}ms` }}
         >
           <div className="flex items-center justify-between mb-2">