DeepSeek Harness (DSH) Plugin: Bottom Guandan Panel

This article introduces a DeepSeek Harness (DSH) plugin named `dsh-guandan`. It is a backend-free, pure front-end “Guandan” card game that can be embedded in DSH’s bottom panel. The plugin supports light/dark theme switching, keyboard shortcuts, full-screen review, and trial play features. Although positioned as entertainment, its AI strategy is relatively simple, and the project has paused updates. Developers can use it for short breaks between work tasks.