dsh-iron: Pure Node Iron Element

`dsh-iron` is a lightweight "fun costume-change" plugin in the DeepSeek Harness (DSH) ecosystem, maintained by developer `uckkk`. It is implemented purely with Node.js, runs entirely locally, and does not rely on external network requests, making it suitable for projects with sensitive network environments. Before installation, ensure that `@deepseek-ai/cordis` (^4.0.1) and `@deepseek-ai/dsh-tools` (>=0.1.0-rc.6) are installed in the environment. Because the plugin runs with the permissions of the current DSH process, developers are advised to review its source code and license (MIT) before installing. Links to the project source code and directory are provided.