dsh-plugin-git-status: DeepSeek Harness Workspace Git Status Panel and Tools

dsh-plugin-git-status is a DeepSeek Harness (DSH) plugin designed to visualize Git status and integrate it into the editor. It provides status chips in the editor tool line, an expandable change list, and a `git_status` tool. The plugin operates in read-only mode, auto-refreshes every 30 seconds by default, supports configurable refresh intervals, and pauses refresh when the browser tab is hidden. After installation, the DSH process must be restarted. It is suitable for scenarios that require monitoring code changes or accessing Git information.