Update app.py

app.py

@@ -68,7 +68,7 @@ def respond(
     message: str,
     history: List[Tuple[str, str]],
     model: str = "gemma_3_800M_sft_v2_translation-kazparc_latest.gguf",  # Set default model
-    #system_message: str = "You are a helpful assistant.",
+    system_message: str = "",
     max_tokens: int = 64,
     temperature: float = 0.7,
     top_p: float = 0.95,