feat: sync showcase with WRNexusJS 0.8.7

app/pages/accessibility.wrn

@@ -8,9 +8,10 @@ page AccessibilityGuide {
     <article class="page-docs guide-page">
       <nav class="docs-breadcrumbs" aria-label="Breadcrumb"><a href="/docs">Docs</a><span aria-hidden="true">/</span><span>Accessibility</span></nav>
       <header class="docs-intro"><span class="showcase-eyebrow">Getting Started</span><h1>Accessibility</h1><p>Keyboard interaction, visible focus states, labels, and reduced-motion support ship by default.</p></header>
-      <section class="guide-section"><h2>Overview</h2><p>Keyboard interaction, visible focus states, labels, and reduced-motion support ship by default.</p></section><section class="guide-section"><h2>Configuration</h2><p>Use the design switcher in the header to test this setting live.</p></section><section class="guide-section"><h2>Component behavior</h2><p>The setting is inherited by components, blocks, templates, and playground previews.</p></section>
-      
-      <nav class="guide-next"><a href="/components/button">Explore components <span aria-hidden="true">→</span></a><a href="/blocks">Browse blocks <span aria-hidden="true">→</span></a></nav>
+      <section class="guide-section"><h2>Keyboard first</h2><p>Every interactive control must be reachable in a logical order and operable without a pointer. Preserve native elements and the component's documented keyboard behavior.</p></section><section class="guide-section"><h2>Names and descriptions</h2><p>Provide visible labels or accessible names for icon-only actions. Associate help and validation messages with their fields rather than relying on color alone.</p></section><section class="guide-section"><h2>Focus and overlays</h2><p>Keep visible focus rings. Modal, drawer, dropdown, and popover components manage focus and dismissal; test Escape, Tab, Shift+Tab, and focus restoration.</p></section><section class="guide-section"><h2>Motion and contrast</h2><p>Theme tokens preserve semantic contrast, while components honor reduced motion. Verify custom colors in light and dark modes at 200% zoom.</p></section>
+      <section class="guide-section"><h2>Quick start</h2><pre><code>bunx wrnexus test accessibility .
+bunx wrnexus security headers .</code></pre></section>
+      <nav class="guide-next"><a href="/components/button">Explore components <span aria-hidden="true">→</span></a><a href="/block-library">Browse blocks <span aria-hidden="true">→</span></a></nav>
     </article>
   }
 }