dsh-benin: Benin Country Information Query

`dsh-benin` is a DSH plugin maintained by uckkk, designed as a lightweight solution for retrieving basic national information about Benin. Its core functionality returns the country’s capital, population, currency, and continent. The plugin is implemented purely in Node.js, has no network dependencies, and is suitable for scenarios that require quick access to static country data. Users can install it using the official command and invoke its registered tools during a session. Before use, it is recommended to review the source code and license; the directory and source code links are provided below.