dsh-key-by: A Key Indexing Plugin Built with Pure Node.js

`dsh-key-by` is a DeepSeek Harness (DSH) plugin maintained by uckkk, designed to meet the needs of local key indexing and toolchain construction. As a pure Node.js implementation, it does not rely on external network services and registers tools through the Cordis patch mechanism, enabling direct invocation in sessions after installation. Developers should ensure their local environment meets the specific prerequisites and are advised to review the source code to verify security and logic. This tool provides a convenient localized solution for developers seeking lightweight, network-independent setups.