DeepSeek Harness OAuth Plugin for Connecting to ChatGPT or Grok

The DeepSeek Harness Connect plugin uses an adapter pattern to integrate the official CLIs of ChatGPT and Grok into the DSH ecosystem without requiring API key management. It unifies the model catalog, supports streaming output and tool calling, and relies on the official CLIs already installed on the system. Installation requires running npm install in the profile directory and configuring `package.json`. Configuration involves SSH port forwarding and environment variables, and disables native tool calling to ensure security.