dsh-startup-animation: Boot Animation + Home Screen Wallpaper for DeepSeek Harness

The DSH Boot Animation Plugin is designed to enhance the startup experience of DeepSeek Harness. It offers multi-layered animations (such as particles, parallax, and 3D tilt), three quality presets (Power Saving/Standard/Showcase), and holiday easter eggs. Users can customize wallpapers and avatars, with real-time previews available in settings. Installation requires cloning the repository and configuring dependencies in `package.json`. Considerations include limitations on spaces in Windows paths, the need to use the official desktop version branch, and wallpaper hiding under dark themes. The plugin improves personalization and a sense of occasion through localized management and visual optimization.