dsh-random: Secure Random Numbers and Array Operations Utility

`dsh-random` is a DSH plugin maintained by uckkk, focusing on secure random-number generation and array manipulation. Its core features include generating random integers, random strings, and sampling/shuffling arrays, with security underpinned by the Node.js `crypto` module. After installation and configuration, developers can directly invoke the relevant tools in a session to quickly complete tasks such as CAPTCHA generation or test data sampling.