dsh-belgium: National Data Support for Belgium

`dsh-belgium` is a DeepSeek Harness (DSH) plugin maintained by uckkk, designed to provide Belgium-related data support for agents. Classified as an online tool, it supports invoking Belgium-specific features at runtime. Installation requires dependencies such as `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools`. The plugin is implemented in pure Node, has no network dependencies at runtime, and is released under the MIT license. It is recommended that developers review the source code to confirm the safety of its logic before enabling it.