dsh-web-desktop: Electron Desktop Launcher for DeepSeek Harness Web Configuration Files

`dsh-web-desktop` is a non-invasive Electron launcher developed by ningbonb, aimed at converting the existing DeepSeek Harness (DSH) Web mode into a desktop client. It works by locating the packaged overlay, reusing the same Web profile, and keeping plugins, sessions, and configuration aligned without modifying core code. Users can launch Electron with the `pnpm dsh plugin --profile web exec dsh-web-desktop` command and forward port parameters. This plugin is suitable for developers who need to use DSH on the desktop and want to keep it consistent with their browser configuration. Note that it does not create configuration; the first version is a desktop mode package, and closing the window does not exit.