dsh-gallium: Gallium Element

The DeepSeek Harness plugin dsh-gallium provides a visual outfit-changing feature based on the “gallium element,” is maintained by uckkk, and is implemented in pure Node.js. Before installation, it requires the dependencies `@deepseek-ai/cordis` (^4.0.1) and `@deepseek-ai/dsh-tools` (>=0.1.0-rc.6). Users must install it using the specified command and should note that it runs with process-level permissions; it is recommended to review the source code first to understand its functionality and security.