DeepSeek Harness Plugin: dsh-nail-issue (Nail Issue Handling)

The DeepSeek Harness (DSH) plugin `uckkk/dsh-nail-issue` provides domain-specific tools for agents to handle nails (problem nails). The plugin has no network dependencies and is implemented in pure Node.js. It registers a `nail_issue` tool that returns nail care solutions based on the provided parameters. Users can install it by running `dsh plugin add github:uckkk/dsh-nail-issue`. The tool is suitable for agents that need to integrate nail care capabilities. It requires `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools` to run and is distributed under the MIT license.