Add default request path of '/' for playground

app.py

@@ -206,7 +206,7 @@ def execute_code():
             'headers': dict(request.headers),
             'body': request.json,
             'url': request.url,
-            # Add other request properties as needed
+            'path': '/',
         }
         environment = request.json.get('environment_info')
         environment_json = json.loads(environment)