dsh-c2k: Celsius to Kelvin Converter

dsh-c2k is a DeepSeek Harness (DSH) plugin maintained by developer uckkk, focused on converting between Celsius and Kelvin temperatures. Written in pure Node.js, it has no external runtime or network dependencies, and runs efficiently and stably. To install it, ensure that dependency environments such as `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools` are met. The plugin is suitable for scenarios requiring numeric conversion in local DSH workflows. Developers should note that it runs with the current process permissions and should ensure version compatibility.