Update app.py

app.py

@@ -99,14 +99,16 @@ class BasicAgent:
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
 
-        messages = [
-            SystemMessage(content="You're a helpful assistant"),
-            HumanMessage(
-                content=question
-            ),
-        ]
-
-        answer = chat.invoke(messages)
+        messages = {
+                        "messages": [
+                            {
+                                "role": "user",
+                                "content": question
+                            }
+                        ]
+                    }
+
+        answer = supervisor.invoke(messages)
         print(f"Agent returning answer: {answer}")
         return answer