some closing

utils/ai/openai.go

@@ -87,6 +87,9 @@ func NewOpenAIAPI(baseURL, token, model string) *OpenAIAPI {
 		client:  client,
 	}
 }
+func (o *OpenAIAPI) Close() error {
+	return o.Logger.Close()
+}
 
 type CreateCompletionReq struct {
 	Model               string    `json:"model"`