summarizing chat history

app.py

@@ -176,7 +176,8 @@ def respond(
             print(f"🔍 DEBUG - New session started, selected country: {selected_country}")
 
     messages = [{"role": "system", "content": current_system}]
-    messages.extend(history)
+    if history:
+        messages.append({"role": "system", "content": "Guess # " + str(len(history) + 1)})
     messages.append({"role": "user", "content": message})
 
     # Debug: Calculate approximate input token count