DSH Plugin dsh-roman: A Roman Numeral Conversion Tool

The dsh-roman plugin provided by DeepSeek Harness focuses on locally converting between Arabic numerals and Roman numerals in both directions, without requiring an internet connection or external APIs. After installing it via the terminal and configuring it in `package.json`, users can automatically recognize and invoke the tool during conversations. It is suitable for generating specific numbering or formatted data displays. It works immediately after installation; please review the source code yourself to ensure security and compliance.