xby-traditional-chinese-medicine-kg: DeepSeek Harness Traditional Chinese Medicine Knowledge Graph Plugin

`xby-traditional-chinese-medicine-kg` is a DeepSeek Harness (DSH) plugin for traditional Chinese medicine (TCM). It stores knowledge of Chinese herbal medicine in a graph database and enables developers to execute Cypher queries. After installation, users must configure an API key in DSH and use tools such as `get_schema` and `execute_read_cypher` to connect to the database and perform read-only queries. The plugin relies on an external graph database service and is currently intended mainly for preliminary research, providing interface support for scenarios that require structured reasoning over TCM knowledge.