dsh-argentina: Argentina Country Plugin

The DeepSeek Harness plugin `dsh-argentina` is maintained by the user `uckkk` and is designed to provide Argentina-related data support for DSH. It is implemented in pure Node.js and can run without relying on external network requests. The installation command is `dsh plugin add github:uckkk/dsh-argentina`, and runtime dependencies include `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools`. Developers should inspect the source code before use to ensure security and compliance.