Add a dsh-kun-like pet that follows the Agent to work for DeepSeek Harness

`dsh-kun-like-pet` is a fun plugin for DeepSeek Harness maintained by liyupi: the little Kun pet in the bottom right corner of the web interface will switch between 9 actions according to the Agent's working, thinking, waiting, error and idle states. When the task ends cleanly, the host process will play the audio clip *"你干嘛~哎哟"*. The code is licensed under MIT, and the materials are for personal study only. The directory installation command is `dsh plugin add github:liyupi/dsh-kun-like-pet`; the actual repository path requires modifying CONFIG and injecting via `cordis_define`. Before installation, you should check the source code and license, and adjust the material path and playback command according to your local machine.