dsh-ui-skin-switcher: DeepSeek Harness Model and Reasoning Effort Switcher

`dsh-ui-skin-switcher` is a plugin built for the DeepSeek Harness Web interface. It provides a compact Claude-style switcher next to the input box, supports selecting models grouped by vendor, and offers an animated thinking-intensity slider for models that support reasoning. The plugin includes per-model memory and automatic theme adaptation. It is ready to use after installation and restart, but note that it only supports DSH 0.1.5+, and the thinking intensity must be configured manually—an incorrect value will silently fail.