dsh-shuffle: An Array Shuffle Utility in the DSH Plugin

The DeepSeek Harness plugin dsh-shuffle is a pure Node.js-based array random shuffle tool that runs locally without network requests. Maintained by uckkk, it can be installed with `dsh plugin add github:uckkk/dsh-shuffle`. It requires the `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools` dependencies. As an auxiliary tool, it provides lightweight data processing capabilities for the DSH ecosystem.