DeepSeek Harness Plugin: dsh-acne-mark

DeepSeek Harness (DSH) provides a modular plugin mechanism, and `dsh-acne-mark` is a tool plugin focused on skincare. The plugin is developed in pure Node.js, has no network dependencies, and provides acne mark fading suggestions along with a disclaimer. It is installed via a CLI command and can be called directly in a session after the tool is registered. The plugin is released under the MIT License, and users should review the source code before installation to ensure security.