feat(website): add Web Crawler to showcase page

Author: KrisSimon

Website/src/img/crawler-screen.jpg

@@ -163,6 +163,19 @@ <h3>ShowFiles</h3>
                 </div>
             </div>
 
+        <!-- Web Crawler -->
+            <div class="showcase-card">
+                <img src="img/crawler-screen.jpg" alt="ARO Web Crawler terminal output screenshot" class="showcase-card-image" loading="lazy">
+                <div class="showcase-card-body">
+                    <h3>Web Crawler</h3>
+                    <p>A web crawler that extracts content as Markdown. Fully event-driven with repository-based URL deduplication, parallel link processing, and typed event extraction via OpenAPI schemas. ~200 lines of ARO.</p>
+                    <a href="https://github.com/arolang/example-web-crawler" class="showcase-card-link">
+                        <svg viewBox="0 0 16 16" fill="currentColor"><path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z"/></svg>
+                        View on GitHub
+                    </a>
+                </div>
+            </div>
+
         <!-- FediTerm -->
             <div class="showcase-card">
                 <img src="img/fediterm-screen.jpeg" alt="FediTerm Mastodon terminal client screenshot" class="showcase-card-image" loading="lazy">