Fixed chat template

Author: ashakirin

samples/quality-assurance/ai-agent/src/main/java/com/example/ai/agent/controller/WebViewController.java

@@ -7,6 +7,6 @@
 public class WebViewController {
     @GetMapping("/")
     public String index() {
-        return "chat-working";
+        return "chat";
     }
 }