XR Server Stream
Dedicated page for server-rendered 3D streaming to client devices.
Live server frame feed
Transport: SSE + base64 PNG. This MVP proves server-to-client frame streaming and can be replaced with WebRTC/H.265 later for low-latency VR headsets.
Keyboard flow: Alt+Shift+P Planner, Alt+Shift+D DICOM, Alt+Shift+M MultiView, Alt+Shift+V VR Preview.