dsh-knife-skill: Knife Skills for Cutting and Food Prep

The DeepSeek Harness (DSH) plugin `dsh-knife-skill` is a Node.js-based, purely local plugin that generates home-cooked meal recipes based on input parameters. It depends on a specific version environment, runs with the current process permissions, and has no network dependency. Developers can install it via a command. It is suitable for scenarios that require novelty or specific cooking data, and demonstrates how DSH extends its capabilities through plugins.