fix(OpenAIResponseAPIClient): refine client selection logic for non-chat models (#8238)

- Updated the getClient method to ensure the OpenAIResponseAPIClient is only returned for non-chat completion models, improving model compatibility checks.

src/renderer/src/aiCore/clients/openai/OpenAIResponseAPIClient.ts

@@ -78,7 +78,7 @@ export class OpenAIResponseAPIClient extends OpenAIBaseClient<
    * 根据模型特征选择合适的客户端
    */
   public getClient(model: Model) {
-    if (this.provider.type === 'openai-response') {
+    if (this.provider.type === 'openai-response' && !isOpenAIChatCompletionOnlyModel(model)) {
       return this
     }
     if (isOpenAILLMModel(model) && !isOpenAIChatCompletionOnlyModel(model)) {