dsh-plugin-csv-report: A DeepSeek Harness Plugin for Local Tariff Data Preparation and Descriptive Statistics

`dsh-plugin-csv-report` is a DeepSeek Harness plugin maintained by SUFE-Chaoyi, designed to address pain points in local tariff data analysis, including inconsistent data structures, poor script reusability, and limited quality traceability. The plugin encapsulates two core tools, data preparation and descriptive statistics, and supports XLSX/CSV standardization, quality validation, numerical and categorical statistics, and group analysis. It uses SHA-256 to lock environment dependencies and the hash chain, ensuring the reproducibility of analytical results. Installation requires configuring paths and allowing pnpm build scripts; during use, `tariff_prepare` and `tariff_describe` should be invoked in the conversation, ultimately generating a report set containing data quality and statistical metrics.