dsh-nitrogen: A DSH Plugin for Accessing Comprehensive Data on the Nitrogen Element

`dsh-nitrogen` is a DeepSeek Harness (DSH) plugin developed by uckkk for locally retrieving standardized data for nitrogen. It operates offline, is MIT-licensed, and includes core functions such as `element_info` (fetch complete information) and `element_field` (query by field). Installation is simple and it loads automatically, making it suitable for frequent data retrieval in agent workflows. Ensure compatible dependency versions before use.