dsh-llm-kiro: Connect logged-in AWS Kiro to DeepSeek Harness

`caopu16/dsh-llm-kiro` is a DeepSeek Harness (DSH) plugin designed to reuse a logged-in AWS Kiro account, providing a `kiro` provider route for Harness to access Claude and open-weight models without the need to maintain additional API keys. This plugin is maintained by `caopu16`, is licensed under the MIT license, and requires Node.js ^22.19 or higher. Its core capabilities include automatically registering the provider route and supporting hot-reload configuration (e.g., `proxyUrl`, `reasoningEffort`, etc.), as well as processing Kiro credentials by reading the local Kiro credential cache.