OrbitVU — real embed test

Using the actual per-product data Festool provided (TS 60 KEBQ-Plus), via the genuine inject_orbitvu() call rather than the guessed inject_viewer_html5 signature from earlier testing.

Run this over HTTP, not file:// (Live Server / python -m http.server / npx serve), same as the earlier OrbitVU test — the library checks the loading protocol.