dsh-routine: Skincare Routine Steps Plugin

dsh-routine is an open-source plugin for DeepSeek Harness (DSH) that focuses on local logic evaluation for facial skincare routines. It does not rely on external network interfaces and directly generates skincare plans based on parameters via the registered `routine` tool. Implemented in pure Node.js, it features low resource usage and fast execution. Installation requires compliance with specific peerDependencies version requirements, making it suitable for handling skincare logic within DSH workflows.