dsh-boundary: Setting Boundaries

The DeepSeek Harness (DSH) plugin `dsh-boundary` belongs to the `admin-security` category and is designed to provide developers with scenario-based structured methods and boundary control. The plugin is implemented purely in Node.js, has no network dependencies, and requires `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools`. Users can install it with the command `dsh plugin add github:uckkk/dsh-boundary` and use its `boundary` tool to apply structured constraints to agent behavior or output.