Update app.py

app.py

@@ -545,7 +545,7 @@ print(f"✅ Model downloaded to: {model_path}")
 model = ModelWrapper(model_path)
 
 def chat_fn(message, history, temperature, top_k, top_p, max_tokens):
-    # Build conversation context
+    # Build conversation context with proper template
     conversation = ""
     for user_msg, bot_msg in history:
         conversation += f"User: {user_msg} Sam: {bot_msg} "