dsh-djibouti: Retrieve Djibouti Country Information

`dsh-djibouti` is a DeepSeek Harness (DSH) plugin designed to provide developers with offline access to static geographic and economic data about Djibouti, without requiring an internet connection. Maintained by istone, it registers the `country_info` tool, which returns information such as Djibouti's capital, population, currency, and continent. Installation requires meeting specific dependencies and reviewing the source code and license before installing. It is suitable for quickly retrieving specific static data about the country in a DSH session, and is a lightweight, network-independent, pure Node implementation.