dsh-screen-time: A Precise Screen Time Calculation Plugin Implemented in Pure Node

The dsh-screen-time plugin, developed by uckkk, is a screen time calculation tool implemented entirely in Node. It provides accurate time data and recommendations through local computation, requires no network dependencies, and effectively reduces agent latency. Developers can install it using the `dsh plugin add` command and invoke its registered tools during a session. As an MIT-licensed project, you should review its source code and permissions before use.