DeepSeek Harness Web GUI Plugin: dsh-ui-turn-rail

`dsh-ui-turn-rail` is a Web GUI plugin for DeepSeek Harness (DSH), designed to address the challenge of managing long conversations. It adds a persistent progress bar next to the conversation area to intuitively display the loading status of turns, and supports hover-to-preview summaries, click-to-jump, and loading historical content. The plugin runs entirely locally, with no network requests or new permissions required, improving navigation efficiency in long-context conversations through visualization.