Replace the async JS bridge round-trip (onLayout → updateLayout()) with
native KVO observation on the content view's bounds. When React Native's
Yoga layout engine sets the frame, the KVO callback fires synchronously
on the same run loop iteration and calls updateLayout() directly. This
eliminates the timing issues that surfaced after enabling iOS 26 design.
https://claude.ai/code/session_01Rp7ef1h3fKh6fhStcjqLJ5
Claude