dsh-iraq: Retrieve Country Information for Iraq

The dsh-iraq plugin for DeepSeek Harness (DSH) focuses on retrieving information about Iraq. Implemented in pure Node.js with no network dependencies, it is suitable for offline or network-sensitive use cases. Users can install and enable it via the official command. As a web-tool plugin, it allows DSH to flexibly extend its ability to obtain Iraq-related data without modifying core code, supports offline use, and is released under the MIT License.