🐛 fix: Baichuan should not introduce freequency_penality parameters (…

…lobehub#3871)

* Update index.ts

* Update index.ts

src/libs/agent-runtime/baichuan/index.ts

@@ -11,6 +11,8 @@ export const LobeBaichuanAI = LobeOpenAICompatibleFactory({
 
       return { 
         ...rest, 
+        // [baichuan] frequency_penalty must be between 1 and 2.
+        frequency_penalty: undefined,
         temperature: 
           temperature !== undefined 
           ? temperature / 2