dsh-papua-guinea: Papua New Guinea National Memory Plugin

The `dsh-papua-guinea` plugin for DeepSeek Harness (DSH) is designed to provide agents with country-specific knowledge about Papua New Guinea and falls under the “Memory” category. Implemented purely in Node.js, it can run offline and relies on DeepSeek-related toolkits. The installation command is `dsh plugin add github:uckkk/dsh-papua-guinea`. Since the source code does not expose detailed APIs, it is recommended to review the repository source to verify its behavior.