dsh-repot-check: Repotting Detection

The `dsh-repot-check` plugin for the DeepSeek Harness (DSH) is designed specifically for plant care scenarios. Its core functionality is to determine through logical evaluation whether a plant needs to be repotted and to provide a care plan. Implemented in pure Node.js with no network dependencies, the plugin aims to provide the DSH ecosystem with lightweight local tooling support. Installation requires ensuring environment version compatibility, and the plugin is released under the MIT open-source license.