dsh-memory-graph: Local Knowledge Graph and Long-Term Memory Plugin for DSH

`dsh-memory-graph` is a localized, non-intrusive plugin designed for DeepSeek Harness that provides long-term memory and temporal knowledge graph capabilities. The SQLite-based plugin supports Chinese retrieval, hybrid relevance recall, and per-turn control, helping keep the graph maintainable and efficient across long conversations. Installation is simple and can be enabled by linking a local checkout, while the DSH Web interface supports visual inspection and management. Uninstallation only removes configuration and does not delete local databases or backup files, making it suitable for developers who need auditable, maintainable persistent storage.