chore: rename website-astro to website, update gitignore

- Rename website-astro/ to website/
- Add website/dist/ and website/.astro/ to gitignore
- Update generate-website-data.mjs output path

website/src/pages/instructions.astro

@@ -0,0 +1,42 @@
+---
+import BaseLayout from '../layouts/BaseLayout.astro';
+import Modal from '../components/Modal.astro';
+---
+
+<BaseLayout title="Instructions" description="Coding standards and best practices for GitHub Copilot" activeNav="instructions">
+  <main>
+    <div class="page-header">
+      <div class="container">
+        <h1>📋 Instructions</h1>
+        <p>Coding standards and best practices for GitHub Copilot</p>
+      </div>
+    </div>
+
+    <div class="page-content">
+      <div class="container">
+        <div class="search-bar">
+          <input type="text" id="search-input" placeholder="Search instructions..." autocomplete="off">
+        </div>
+        
+        <div class="filters-bar" id="filters-bar">
+          <div class="filter-group">
+            <label for="filter-extension">File Extension:</label>
+            <select id="filter-extension" multiple></select>
+          </div>
+          <button id="clear-filters" class="btn btn-secondary btn-small">Clear Filters</button>
+        </div>
+        
+        <div class="results-count" id="results-count"></div>
+        <div class="resource-list" id="resource-list">
+          <div class="loading">Loading instructions...</div>
+        </div>
+      </div>
+    </div>
+  </main>
+
+  <Modal />
+
+  <script>
+    import '../scripts/pages/instructions';
+  </script>
+</BaseLayout>