Follow-up to #11638 (raised in review).

#11638 makes iOS orientation changes fire from the scene delegate's geometry callbacks (windowScene:didUpdateEffectiveGeometry: and windowScene:didUpdateCoordinateSpace:interfaceOrientation:traitCollection:), because scene-based apps on iOS 27 no longer receive UIApplicationDidChangeStatusBarOrientationNotification.

In embedded mode (NativeScriptEmbedder), the host app owns the scene delegate, so NativeScript's SceneDelegate callbacks never run. Orientation detection there still relies only on the status bar notification. On iOS 27, embedded NativeScript content will therefore probably not raise orientationChanged or update the ns-landscape/ns-portrait root classes when the host rotates.

Possible approaches:

• Give the host a hook to forward geometry changes, for example on NativeScriptEmbedder or its delegate, which would call IOSNativeWindow._syncOrientation().
• Have core watch the embedder's windowScene for geometry changes without needing the host's delegate (for example KVO on effectiveGeometry, or registerForTraitChanges).

Not yet reproduced; needs an embedded host app running on an iOS 27 simulator to confirm.