dsh-wx-desktop: DeepSeek Harness Desktop

dsh-wx-desktop is a standalone Electron desktop application built on DeepSeek Harness, designed to deliver a native window experience for web clients. It ships with the dsh runtime and supports reusing configured profiles and all plugins. It can run directly or be loaded as a plugin into a browser GUI. Key features include a native window experience, a self-contained runtime environment, 100% plugin compatibility, and single-instance management. The installer is relatively large (about 220 MB), but the app can start without Node and shares the same path as the web version.