Speak responses aloud on macOS using the built-in `say` command when user input indicates Voice Wake/voice recognition (for example, messages starting with "User talked via voice recognition on <device>").

当用户输入指示语音唤醒或语音识别时（例如，以“User talked via voice recognition on <device>”开头的消息），在 macOS 上使用内置的 `say` 命令朗读响应内容