DeepSeek Harness Splash Screen Animation Plugin

The DeepSeek Harness plugin `deepseek-splash-animation` allows users to play a custom video or image when the application starts, automatically fading out after playback. It supports formats such as MP4, WebM, and GIF, and provides configuration options for muting, volume, fit mode, and a skip button. Users can install it via the command line and customize the content through the settings page or a configuration file. It is muted by default to comply with browser autoplay policies, and keyboard shortcuts such as ESC can be used to dismiss it.