feat: sync showcase with WRNexusJS 0.8.72 and @wrnexus/ui 0.8.88

- Sync app, public, scripts, test and examples from the framework's
  component-showcase: redesigned component demos, marketing blocks under
  /blocks, template and preview galleries, distinct Timeline/Section
  variants, Chat Bubble receipts, a top-placement Drawer demo, and the
  playground code panel fix (objects in array props no longer blank out).
- Standalone adaptations kept: the generator and tests read
  component-reference.json from the published @wrnexus/ui, and tests use
  the published @wrnexus/compiler and @wrnexus/syntax.
- Dependencies: every @wrnexus/* package to its latest release (ui 0.8.88,
  styles 0.8.26, core 0.8.16, cli 0.8.72, ...), happy-dom for the
  playground tests, Tailwind 4.3; bun.lock and package-lock.json refreshed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/pages/components/link.wrn

@@ -40,7 +40,7 @@ page LinkDetail {
 /&gt;</code></pre>
           </section>
           <div class="playground-status" data-playground-status aria-live="polite"></div>
-
+          
         </div>
         <form class="playground-controls" data-playground-form>
           <header><div><span>Component props</span><strong>9 controls</strong></div><button type="reset"><span class="icon-[lucide--rotate-ccw] size-4" aria-hidden="true"></span>Reset</button></header>
@@ -59,7 +59,7 @@ page LinkDetail {
         <div class="demo-workbench">
           <div id="link-demo-1" class="demo-canvas demo-canvas--1">
             <div class="demo-browser-chrome"><span></span><span></span><span></span><small>Live preview</small></div>
-
+            
             <div class="demo-render"><Link size="default" label="Open components" href="/base" external="false" class="showcase-instance showcase-instance--1" /></div>
           </div>
           <section class="demo-code" aria-label="Standard navigation link usage">
@@ -79,7 +79,7 @@ page LinkDetail {
         <div class="demo-workbench">
           <div id="link-demo-2" class="demo-canvas demo-canvas--2">
             <div class="demo-browser-chrome"><span></span><span></span><span></span><small>Live preview</small></div>
-
+            
             <div class="demo-render"><Link size="sm" label="WRNexusJS documentation" href="https://wrnexusjs.dev" target="_blank" external="true" class="showcase-instance showcase-instance--2" /></div>
           </div>
           <section class="demo-code" aria-label="External resource link usage">
@@ -102,7 +102,7 @@ page LinkDetail {
         <div class="demo-workbench">
           <div id="link-demo-3" class="demo-canvas demo-canvas--3">
             <div class="demo-browser-chrome"><span></span><span></span><span></span><small>Live preview</small></div>
-
+            
             <div class="demo-render"><Link size="lg" color="info" label="Explore framework guides" href="/framework-guides" external="false" class="showcase-instance showcase-instance--3" /></div>
           </div>
           <section class="demo-code" aria-label="Large emphasized link usage">
@@ -116,7 +116,7 @@ page LinkDetail {
           </section>
         </div>
       </article></div></section>
-
+        
         <section id="api" class="detail-section"><div class="detail-section-heading"><span>Component API</span><h2>Props and configuration</h2><p>All content and behavior shown above is supplied through these props and slots.</p></div><div class="docs-table-wrap"><table class="docs-table"><thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Required</th></tr></thead><tbody><tr><td><code>size</code></td><td>string</td><td><code>"default"</code></td><td>No</td></tr><tr><td><code>color</code></td><td>string</td><td><code>"primary"</code></td><td>No</td></tr><tr><td><code>label</code></td><td>string</td><td><code>"Link"</code></td><td>No</td></tr><tr><td><code>href</code></td><td>string</td><td><code>"#"</code></td><td>No</td></tr><tr><td><code>target</code></td><td>string</td><td><code>""</code></td><td>No</td></tr><tr><td><code>rel</code></td><td>string</td><td><code>""</code></td><td>No</td></tr><tr><td><code>underline</code></td><td>string</td><td><code>"hover"</code></td><td>No</td></tr><tr><td><code>external</code></td><td>boolean</td><td><code>false</code></td><td>No</td></tr><tr><td><code>class</code></td><td>string</td><td><code>""</code></td><td>No</td></tr></tbody></table></div></section>
       </main>
       <aside class="detail-aside">
@@ -125,7 +125,7 @@ page LinkDetail {
     </div>
     <nav class="detail-pagination">
       <a href="/components/layout-splitter"><small>Previous</small><strong>← Layout Splitter</strong></a>
-      <a href="/components/public-page-shell"><small>Next</small><strong>Public Page Shell →</strong></a>
+      <a href="/components/section"><small>Next</small><strong>Section →</strong></a>
     </nav>
   }
 }