docs: add Litestar setup guide and update site navigation

- New docs/site-pages/litestar-guide.html: setup guide covering
  installation, HTTP endpoint, async handlers, SSE streaming,
  WebSocket support, example app, and testing
- Updated nav dropdowns on all 6 existing site pages to include
  Litestar Guide link
- Added Litestar Guide doc-card to index.html docs grid

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

Author: fsecada01

docs/site-pages/admin-panel.html

@@ -539,6 +539,7 @@
           <li><a href="customer-support.html">Customer Support</a></li>
           <li><a href="education-lms.html">Education / LMS</a></li>
           <li><a href="financial-dashboard.html">Financial Dashboard</a></li>
+          <li><a href="litestar-guide.html">Litestar Guide</a></li>
         </ul>
       </li>
       <li><a href="component_framework.html" class="nav-api">API Ref</a></li>

docs/site-pages/customer-support.html

@@ -539,6 +539,7 @@
           <li><a href="customer-support.html" class="nav-active">Customer Support</a></li>
           <li><a href="education-lms.html">Education / LMS</a></li>
           <li><a href="financial-dashboard.html">Financial Dashboard</a></li>
+          <li><a href="litestar-guide.html">Litestar Guide</a></li>
         </ul>
       </li>
       <li><a href="component_framework.html" class="nav-api">API Ref</a></li>

docs/site-pages/ecommerce.html

@@ -555,6 +555,7 @@
           <a href="customer-support.html">Customer Support</a>
           <a href="education-lms.html">Education / LMS</a>
           <a href="financial-dashboard.html">Financial Dashboard</a>
+          <a href="litestar-guide.html">Litestar Guide</a>
         </div>
       </li>
       <li><a href="component_framework.html" class="nav-api">API Ref</a></li>

docs/site-pages/education-lms.html

@@ -229,6 +229,7 @@
           <li><a href="customer-support.html">Customer Support</a></li>
           <li><a href="education-lms.html" class="nav-active">NYS Regents</a></li>
           <li><a href="financial-dashboard.html">Financial Dashboard</a></li>
+          <li><a href="litestar-guide.html">Litestar Guide</a></li>
         </ul>
       </li>
       <li><a href="../component_framework.html" class="nav-api">API Ref</a></li>

docs/site-pages/financial-dashboard.html

@@ -555,6 +555,7 @@
           <a href="customer-support.html">Customer Support</a>
           <a href="education-lms.html">Education / LMS</a>
           <a href="financial-dashboard.html" class="nav-active">Financial Dashboard</a>
+          <a href="litestar-guide.html">Litestar Guide</a>
         </div>
       </li>
       <li><a href="component_framework.html" class="nav-api">API Ref</a></li>

docs/site-pages/index.html

@@ -632,6 +632,7 @@
           <a href="customer-support.html">Customer Support</a>
           <a href="education-lms.html">Education / LMS</a>
           <a href="financial-dashboard.html">Financial Dashboard</a>
+          <a href="litestar-guide.html">Litestar Guide</a>
         </div>
       </li>
       <li><a href="component_framework.html" class="nav-api">API Ref</a></li>
@@ -947,6 +948,11 @@ <h2 class="section-title">Where to go next.</h2>
         <div class="doc-card__title">Financial Dashboard</div>
         <div class="doc-card__desc">Live portfolio P&amp;L, watchlist price feeds, order management, and margin risk alerts via WebSocket.</div>
       </a>
+      <a href="litestar-guide.html" class="doc-card">
+        <div class="doc-card__label">guide</div>
+        <div class="doc-card__title">Litestar Guide</div>
+        <div class="doc-card__desc">Setup guide for the Litestar adapter — HTTP endpoints, async handlers, SSE streaming, and WebSocket support.</div>
+      </a>
       <a href="https://github.com/fsecada01/component-framework" class="doc-card" target="_blank" rel="noopener">
         <div class="doc-card__label">source</div>
         <div class="doc-card__title">GitHub Repository</div>