dsh-mate-companion: Packaging Persisto Mate as a DeepSeek Harness Plugin

`m-rui001/dsh-mate-companion` is an AI companion plugin for DeepSeek Harness (DSH), designed to add persistent memory, emotion simulation, and body clock capabilities to agents. The plugin is MIT-licensed and provides core features such as system prompt snippets, a kernel for processing emotional states and offline credits, and memory retrieval and consolidation. It includes three tools—memory, thinking, and debugging—and supports multilingual switching. Developers should note that it is currently in preview and has limitations, including self-reporting bias.