dsh-stock-live: Real-Time A-Share Market Quotes

The `dsh-stock-live` plugin for DeepSeek Harness (DSH) is designed to meet agents' need to access real-time A-share market data. Developed in Node.js, it retrieves stock data in real time through network APIs without maintaining a local database. Users can install it with a simple command and directly call the registered tool during conversations to obtain the latest market quotes. The maintainer is `uckkk`, and the plugin is released under the MIT license, making it suitable for integration into the DSH ecosystem to enhance financial data processing capabilities.