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>").

当用户输入表明启用了语音唤醒或语音识别时（例如消息以“User talked via voice recognition on <device>”开头），在 macOS 上使用内置的 say 命令朗读响应内容