dsh-msi-icons: DeepSeek Harness Model Selector Sty and Timeout Routing Plugin

The DeepSeek Harness Model Selector Beautification Plugin is designed to improve the visual efficiency and stability of model selection on the Web. Its core features include adding official vendor icons, using a four-section tiled layout to distinguish pinned, native, plugin, and visual models, and implementing an automatic routing retry mechanism for pinned models that time out, ensuring service continuity. It is easy to install and supports customizing additional vendor icons via a configuration file. The plugin has no external dependencies or hard dependencies, and provides HTTP endpoints for status synchronization and control.