dsh-flour-swap: Flour Substitution Calculation Plugin

`dsh-flour-swap` is a flour substitution calculation plugin for DeepSeek Harness (DSH). Maintained by user `uckkk`, the plugin supports precise parameter-based calculations and returns detailed results. It is implemented in pure Node.js and does not rely on external network requests. The installation command is `dsh plugin add github:uckkk/dsh-flour-swap`. Before using the plugin, ensure that the environment has `@deepseek-ai/cordis` version `^4.0.1` and `@deepseek-ai/dsh-tools` version `>=0.1.0-rc.6` installed. It follows the MIT License and is designed to address numerical calculation needs in specific domains.