dsh-turn-index: DSH Web GUI conversation turn index

dsh-turn-index is a third-party turn index plugin for the DeepSeek Harness Web GUI, maintained by Simon314620 and licensed under MIT. The plugin aims to alleviate the pain point of quickly locating user questions in long sessions by displaying an index bar on the right side of the Web GUI, listing user questions turn by turn. Key features include: smooth scrolling and highlighting upon clicking an index entry; the index bar highlighting the current turn during reading; support for paginated loading of earlier history; providing toggle hints in trace view; automatically avoiding the right detail panel; and supporting responsive layout and bilingual (Chinese/English) interfaces. The plugin requires no configuration and takes effect immediately after installation. Regarding data, the plugin features zero runtime logic, does not read or write to the file system, and makes no network requests. Session data is used solely for rendering, and preferences are stored in localStorage with no telemetry or tracking.