dsh-nail-steps: Nail Procedure Plugin

The `dsh-nail-steps` plugin for DeepSeek Harness (DSH), maintained by uckkk, provides parameter-based generation of “nail care plans.” The plugin is implemented in pure Node and has no network dependencies, making it efficient to run. After installation, it exposes the `nail_steps` tool within a session, suitable for scenarios that simulate nail-care workflows, such as fun dress-up and role-playing. The plugin is open-sourced under the MIT License; it is recommended to review its source code logic before use.