dsh-beryllium: DeepSeek Harness Beryllium Element Query Plugin

`dsh-beryllium` is a DeepSeek Harness plugin designed to provide detailed information about the element beryllium without an internet connection. Developed by uckkk and implemented using Node.js, it is released under the MIT license. Its core functionality includes two tools: `element_info`, which returns the full record for the element beryllium, and `element_field`, which queries a single data item by field. This plugin is suitable for automation workflows that require fast local access to structured data, with all data fully embedded and no reliance on network requests.