electkismet/eltdx ? reverse-engineered prompt

Build me a Python library for getting A share market data from the Tongdaxin protocol, with a Rust powered core for speed. I want it to be easy to use from Python first, but also let other languages call it through HTTP and WebSocket, and expose a few MCP tools too.

It should cover the main stuff a quant or trader would want, like snapshots, minute data, tick by tick trades, candlesticks, auction data, company info, topics, and some basic financial data. It should also include a few handy helper methods so people can ask for common things without dealing with the raw protocol every time.

Please make it installable with pip, include a simple command line check, and add clear docs or examples for the common workflows. If you need to look up current protocol details or docs online, feel free to do that.