dsh-pet-disease: Common Pet Disease Lookup and Deworming Solutions

`dsh-pet-disease` is a plugin for DeepSeek Harness (DSH) designed to address the difficulty large models face in providing structured diagnoses and medication recommendations when handling pet medical consultations. The plugin enables queries for common diseases and deworming plans using local data structures and can run offline without internet access. Installation is simple: just execute the specified command, and once installed, you can directly invoke its `pet_disease` tool in a session to handle pet medical-related requests.