dsh-bangladesh: Bangladesh National Information Query Plugin

The `dsh-bangladesh` plugin for DeepSeek Harness (DSH) provides Bangladesh-related national information for the DSH ecosystem, supporting geographic and country data processing. It is implemented purely in Node.js with no network dependencies, is open source, and is maintained by `uckkk`. To install it, use `dsh plugin add github:uckkk/dsh-bangladesh` and ensure the dependencies for `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools` are satisfied. Check permissions and review the source code before enabling the plugin.