feat: deployable design studio and updated component showcase

app/pages/sizing.wrn

@@ -12,7 +12,7 @@ page SizingGuide {
       <section class="guide-section"><h2>Match density to the task</h2><p>Use compact controls for dense toolbars and tables, and the default size for forms. Keep related controls at the same size and retain usable touch targets on small screens.</p><pre><code>&lt;Button label="Filter" size="sm" /&gt;
 &lt;Input label="Project name" size="default" /&gt;
 &lt;RangeSlider label="Scale" min="0" max="5" step="0.2" value="2.4" /&gt;</code></pre><h3>Verify the result</h3><p>Open the matching component page, change its options, and try the keyboard controls. Copy the demonstrated configuration into your page, then replace sample content with your data.</p></section>
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       <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>
   }