dsh-burn-aid: Burn First Aid Plugin

The `dsh-burn-aid` plugin for DeepSeek Harness (DSH) is implemented purely in Node and focuses on home burn first-aid scenarios. Maintained by community developers, it supports offline operation and can provide standard first-aid protocols without an internet connection. Developers only need to install it through the plugin manager; no additional configuration is required, allowing its first-aid tools to be invoked directly in a session. Before use, ensure the specified dependencies are installed in the environment, and check the source code logic and license.