refactor: polish alfred_response value

app.py

@@ -4,7 +4,6 @@ import pandas as pd
 import requests
 import os
 from matplotlib.image import imread
-from ast import literal_eval
 
 
 # hf 의 secret 으로 설정, 로컬 테스트시에는 내부 ip 사용
@@ -67,7 +66,8 @@ with gr.Blocks() as demo:
                 f"{ALFRED_URL}/hf_demo/alfred", params={"ecg_id": ecg_id}, timeout=600
             )
             alfred_response.raise_for_status()
-            alfred_result = literal_eval(alfred_response.text)
+            res = alfred_response.json()
+            alfred_result = res.get("answer")
 
             image_response = requests.post(
                 f"{ALFRED_URL}/hf_demo/ptbxl_to_image",