Sử dụng agent thực sự từ agent.py cho BasicAgent trong app.py

app.py

@@ -12,6 +12,7 @@ import os
 import gradio as gr
 import requests
 import pandas as pd
+from agent import process_question
 
 # --- Constants ---
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
@@ -23,9 +24,9 @@ class BasicAgent:
         print("BasicAgent initialized.")
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
-        fixed_answer = "This is a default answer."
-        print(f"Agent returning fixed answer: {fixed_answer}")
-        return fixed_answer
+        answer = process_question(question)
+        print(f"Agent returning answer: {answer}")
+        return answer
 
 
 def run_and_submit_all(profile: gr.OAuthProfile | None = None):