Introducing the DeepSeek Harness Plugin: dsh-peaktime-clock

`dsh-peaktime-clock` is a browser extension designed for DeepSeek Harness that intuitively displays the status of billing time windows. Using a color capsule and countdown in the bottom-right corner, it lets you distinguish between full-price (red) and discounted (green) periods without leaving the page. It automatically calibrates based on UTC time, makes no network requests, and runs automatically after installation, helping developers precisely manage API costs.