DSH-File: Current Conversation Workspace File Manager for DeepSeek Harness

`dsh-file` is a VS Code-style file management plugin for DeepSeek Harness, with the package name `@rose43/dsh-file`, licensed under the MIT protocol. It allows users to directly browse, edit, and save files in the current workspace during web or desktop sessions, without needing to switch to a local editor. Core features include: a sidebar dynamically displaying the file tree of the current session; Monaco Editor for middle-column file editing with syntax highlighting, falling back to plain text when the CDN is unavailable; real-time Markdown preview with source code toggling; support for multiple preset themes and custom configuration, with JSON theme export/import. The plugin supports creating, renaming, and deleting files and directories, and features strict workspace boundary protection and symbolic link escape detection. During installation, it must be done via