@moshe-233/dsh-web-splash-loader: DSH Web Splash Liquid Glass Loader and Diagnostic Monitor

`@moshe-233/dsh-web-splash-loader` is a splash screen loader plugin for the DeepSeek Harness (DSH) web interface, designed to address white-screen flickering before component mounting. It features a full-screen liquid-glass overlay, a deep-sea whale light effect, a real-time plugin loading checklist, and load duration monitoring. Supporting automatic fade-out and a timeout fallback, it also provides a persistent health bubble for diagnostics. The plugin requires the DSH runtime environment and automatically takes over the startup process upon installation, making it suitable for development debugging and performance monitoring.