dsh-app-launcher: Turn DSH Web GUI into a desktop application window

dsh-app-launcher is a DSH profile bundle designed to transform the DSH Web GUI into a desktop-like application experience. Its core features include launching Chrome or Edge standalone application windows using a dedicated configuration directory to achieve browser isolation; automatically carrying the process token in the window URL to facilitate authentication; and calling appExit(0) upon window closure to ensure the DSH process exits gracefully. By default, it generates desktop shortcuts on Windows and supports remembering window state and disabling spell checking. Users need to have pnpm installed and can install it by executing the `dsh plugin` command via GitHub or npm. Configuration items can be overridden in `cordis.patch.yml` by ID, eliminating the need for manual configuration.