DSH-oh-my-theme: DSH Web Theme and File Workbench Plugin

`dsh-oh-my-theme` is a third-party plugin customized for the DeepSeek Harness (DSH) web interface, designed to integrate common development features to enhance productivity. The plugin is maintained by `zhxqc` and is licensed under the MIT License. Its core features include: 1. **Themes and Display**: It comes with three built-in skins—`aurora`, `coffee`, and `matrix`—and supports customization of font sizes and styles for conversation flows, file trees, and previews, with preferences saved in the browser's `localStorage`. 2. **File Interaction**: It supports referencing project files in the input box via the `@` symbol to avoid blind AI searches; it provides a right-side file panel with file tree browsing, multi-tab preview, and split-view layouts, and the shortcut `Ctrl/Cmd+P` enables quick...