dsh-uv-index: UV Protection Calculation Tool

The DeepSeek Harness (DSH) plugin `dsh-uv-index` is maintained by developer `uckkk` and is designed to provide agents with UV index calculation and sun protection recommendations. Implemented in pure Node.js without external network dependencies, it offers high runtime efficiency and requires no additional configuration. Developers only need to install it using the official command, after which they can directly call the `uv_index` tool within a DSH session to obtain accurate results. The plugin is suitable for outdoor activity planning and health consultation scenarios, but users should review source code security and verify environment dependencies before use.