fix

routers/user.py

@@ -360,7 +360,7 @@ async def exchange_google_code_for_token(request: Request,response: Response, co
         raise HTTPException(status_code=400, detail="Invalid or expired authorization code.")
 
     await redis_client.delete(redis_key) # Dùng một lần
-    user_email = user_email_bytes.decode()
+    user_email = user_email_bytes
 
     mongo_db.users.update_one({
         "email": user_email