dsh-yingnao: Enabling Agents to Govern Local Disks

`dsh-yingnao` is a local disk governance plugin for DeepSeek Harness. It builds file indexes through a locally running Yingnao service, enabling agents to inspect disk status, semantically search files, and dispatch governance tasks. The plugin supports retrieval by name, path, or content, and can discover semantic associations. In governance operations, it establishes boundaries: directly moving files or performing money-related operations are prohibited and require user confirmation, while other reversible operations can be executed immediately. The plugin is commonly paired with `dsh-deepbrain` to address local data privacy and governance automation, allowing local machine management without API keys.