Update app.py

app.py

@@ -1,7 +1,7 @@
 # app.py — veureu/schat (Salamandra 7B Instruct · ZeroGPU) — compatible con ENGINE
 from __future__ import annotations
 import os, json
-from typing import List, Dict, Optional, Tuple
+from typing import List, Dict, Any, Optional, Tuple
 
 import gradio as gr
 import spaces