dsh-workspace: A Lightweight IDE and Git Workspace Plugin for DeepSeek Harness

`dsh-workspace` is a lightweight open-source plugin for DeepSeek Harness (DSH) that integrates IDE and Git workspace features. It provides balance monitoring, a project file tree, Git operations (such as committing and switching branches), a built-in terminal, and privacy protection mechanisms. The plugin can be installed via official commands and is ready to use without configuration, while also allowing customization of parameters such as access permissions. It turns DSH into a lightweight workbench with basic development capabilities.