dsh-tray-flash: Let DSH flash to remind you of unfinished tasks on Windows.

dsh-tray-flash is a DeepSeek Harness client plugin maintained by xymy666. It maps unread yellow/green dots on sidebar session rows to the blinking on/off of the Windows tray icon and the taskbar button, stopping only when all dots have disappeared. It is divided into Host and Client components. The triggering conditions are the end of a round, waiting for approval, and waiting for an answer; it does not trigger sub-agents, background tasks, or scheduled tasks. The article is organized around triggering and stopping conditions, the principle of tray transparent frames, link-based installation steps, cordis.patch.yml configuration options, self-inspection routing, and test coverage organization. It also clarifies Windows platform limitations, running with the current DSH process permissions, and the need to verify the source code and MIT license before installation.