dsh-plugin-product-design: A Product Design and Prototyping Workflow Suite for DeepSeek Harness

The DSH Desktop product design workflow suite, `dsh-plugin-product-design`, adopts a “router + nine sub-skills” architecture and is designed to convert design briefs into code through standardized workflows. It enforces a “minimum brief gate” and a “design QA hard gate,” while following evidence-driven and no-fake-asset principles to ensure output quality. Users initiate requests through the `/product-design` entry point; the plugin then sequentially retrieves context, generates visual direction, and converts it into code. Installation requires a supported Node.js version and a `cordis.yml` configuration, and hot reload is supported after installation.