The active controls' pivot. THROWS when there is none (no orbit-like
target and no getFocusTarget()) rather than answering with the world
origin — see getCameraPivot.
Widen/restore the active orbit controls' distance clamp. Returns the
PREVIOUS limits, or null when nothing was changed because the active
controls are not orbit-like (or their limits are not numeric) — the caller
must not read null as "applied".
The in-page camera API
installCameraPlacementattaches towindow.__luxarE2ECamera. Declared here (types are erased) so the installer's body, the Node-side callers below, and a spec that drives many placements from inside ONEpage.evaluateall describe the same shape.