Update app.py

app.py

@@ -86,6 +86,7 @@ def github_callback(code: str, state: str):
         "state": state
     }
     resp = requests.post(token_url, headers=headers, data=data)
+    print("GitHub token response:", resp.text)  # Debug print
     token = resp.json().get("access_token")
     if token:
         user_tokens[state] = token