dsh-iridium: A DeepSeek Harness Plugin Implemented in Pure Node.js with No Network Dependencies

`dsh-iridium` is a pure Node.js inference plugin for DeepSeek Harness (DSH), designed to provide network-independent model inference capabilities for local or restricted network environments. Maintained by uckkk, it is built entirely on Node.js standards and generates no network traffic. It requires the support of `@deepseek-ai/cordis` (^4.0.1) and `@deepseek-ai/dsh-tools` (>=0.1.0-rc.6) to run. Developers can install it via the command line, making it suitable for scenarios that prioritize security or offline operation.