fix: google sheet scores

app.py

@@ -1,5 +1,6 @@
 import os
 import sys
+import json
 import requests
 import gradio as gr
 import pandas as pd
@@ -128,7 +129,7 @@ def RAG_evaluation(uploaded_file, user_api_key):
                         question=input_row["Question"],
                         answer=input_row["Answer"],
                         contexts=input_row["Context"],
-                        scores=record
+                        scores=json.dumps(record, ensure_ascii=False)
                     )
 
             except Exception as e: