Update app.py

Optimized model settings to vetted numbers.

app.py

@@ -22,10 +22,11 @@ MODEL_NAME = "Qwen/Qwen3-0.6B"
 model =\
     TransformersModel(
         model_id=MODEL_NAME,
-        max_new_tokens=4096,
-        # temperature=0.6,
-        # top_p=0.95,
-        # repetition_penalty=1.1
+        max_new_tokens=32768,  # 4096,
+        temperature=0.6,
+        top_p=0.95,
+        top_k=20,
+        repetition_penalty=1.1
     )