TextIn xParse Plugin

`intsig-textin/dsh-plugin-xparse` is a document parsing plugin for DeepSeek Harness. Installation requires specific environmental prerequisites, and once installed, it offers multiple document parsing and task management features. The plugin configures AppKey and OAuth through browser cards and supports device login. Parsing results are written to the workspace as artifacts, while task operations return Task/Run identifiers. Users should note the paid licensing mechanism and credential security, and all file operations are managed by the sandbox.