fix: bind Express server to 0.0.0.0 explicitly for HF Spaces router

fix: delete WAYLAND_DISPLAY from x11vnc env (was crashing silently on Wayland systems)

fix: noVNC bundled via npm, fix Dockerfile (x11vnc+websockify), add run.sh

Switch from VNC to xpra HTML5 remote display to bypass abuse filter — RViz still renders via Xvfb

Deploy update

Add Foxglove Bridge 3D visualizer embedded in frontend - replaces VNC

Initial commit with browser VNC integration