dsh-skin-toggle: DSH Web GUI Skin Management Button

tiantyu/dsh-skin-toggle is a skin management plugin designed specifically for the DSH Web GUI, aiming to solve the difficulty of switching between multiple skins. The plugin provides a draggable floating button in the top-right corner of the page, supporting position memory and persistence across refreshes. Users can quickly restore the default interface by left-clicking, while right-clicking opens a panel for mutually exclusive switching among automatically detected installed skins matching `dsh-client-ui-skin-*`. Plugin state is saved in localStorage to ensure the selection takes effect after refreshing. As a pure client-side display layer tool, it only controls skin visibility without interfering with model requests or modifying plugin states. Installation requires executing the `dsh plugin add` command, restarting the Web service, and hard refreshing the browser. This plugin is licensed under the MIT license and is suitable for users needing frequent...