xby-drand: A Verifiable Random Number Generation Service for AI Workflows

`xby-drand` is a tool in the DeepSeek Harness plugin ecosystem for obtaining verifiable random numbers, designed to address the limitations of hard-coded randomness in AI workflows. It is based on the Drand protocol and supports retrieving random values by timestamp or round number, requiring an API key from the official Xiaobenyang website. The plugin provides core features such as setting the API key and retrieving the latest or specified timestamp/round random numbers, making it suitable for developers who need to introduce determinism and randomness in distributed or verifiable scenarios.