DeepSeek Harness Plugin: dsh-agriculture-terms

The DeepSeek Harness (DSH) plugin `dsh-agriculture-terms` provides local querying capabilities for an agricultural terms knowledge base, supporting on-demand retrieval. Implemented in pure Node.js with no network dependencies, it is suitable for privacy-sensitive scenarios. By registering the `list_agriculture` and `get_agriculture` tools, developers can invoke them directly in conversations, addressing the maintenance challenges of hard-coded entries. The code is open source under the MIT license.