dsh-turn-jump: A Fast Jump-and-Navigation Plugin for Conversation Turns

`dsh-turn-jump` is a fast turn-jumping and navigation plugin designed for the DeepSeek Harness Web Console. By displaying a minimalist scale on the right side of the screen, it supports features such as hovering to view prompt summaries and clicking to smoothly jump to a turn, effectively addressing the pain point of frequently scrolling through long conversations to locate historical nodes. The plugin offers adaptive theming, a breathing-style running-status indicator, and zero external dependencies, while remaining easy to install.