dsh-paper-design: Paper Design MCP Bridge Plugin

`dsh-paper-design` is a plugin for DeepSeek Harness (DSH) that integrates the design capabilities of Paper Desktop into DSH through the MCP protocol. Installation requires modifying `package.json` and restarting the process. The plugin mainly provides native tool mapping, image screenshot forwarding, Cursor-style design guidance, and three core skills. It also supports OAuth authentication management and offers commands for reconnection and authentication status checks. Before use, ensure that Paper Desktop is running and that the DSH configuration is correct.