Set repeat_penalty to 0 by default

llama_cpp/server/app.py

@@ -146,7 +146,7 @@ top_k_field = Field(
 )
 
 repeat_penalty_field = Field(
-    default=1.0,
+    default=0.0,
     ge=0.0,
     description="A penalty applied to each token that is already generated. This helps prevent the model from repeating itself.\n\n"
     + "Repeat penalty is a hyperparameter used to penalize the repetition of token sequences during text generation. It helps prevent the model from generating repetitive or monotonous text. A higher value (e.g., 1.5) will penalize repetitions more strongly, while a lower value (e.g., 0.9) will be more lenient.",