update index controller, add health check

backend/app/Controller/IndexController.php

@@ -12,16 +12,34 @@ declare(strict_types=1);
 
 namespace App\Controller;
 
+use Hyperf\HttpServer\Annotation\Controller;
+use Hyperf\HttpServer\Annotation\RequestMapping;
+
+#[Controller]
 class IndexController extends AbstractController
 {
+    // #[RequestMapping('/', methods: ['GET', 'POST'])]
     public function index()
     {
-        $user = $this->request->input('user', 'Hyperf');
         $method = $this->request->getMethod();
 
         return [
             'method' => $method,
-            'message' => "Hello {$user}.",
+            'message' => "Dataflow App",
+        ];
+    }
+
+    #[RequestMapping('/favicon.ico', methods: ['GET', 'POST'])]
+    public function favicon()
+    {
+        return  [];
+    }
+
+    #[RequestMapping('/health', methods: 'GET')]
+    public function health()
+    {
+        return [
+            'message' => "System status ok",
         ];
     }
 }