DeepSeek Harness Plugin Introduction: relay-dsh-plugin-files

`relay-dsh-plugin-files` is a plugin that adds file browsing capabilities to DeepSeek Harness (DSH). It leverages the DSH Agent identity to load and display the file tree of the current workspace, supports previewing and filtering text files such as source code and Markdown, and has no external runtime dependencies. Released under the MIT license, it requires installation alongside the host panel and is designed to help developers maintain a continuous development workflow without leaving the official interface.