Breaking change: Layout margins, safe areas, and avoidance values now use physical EdgeInsets. Replace start/end access with left/right and do not resolve these values against Flutter's Directionality. Wire schema v5 strictly rejects schema v4 payloads.

• Report layout margins, safe areas, and avoidance as physical EdgeInsets whose left and right sides do not flip with Flutter's text direction.
• Resolve UIKit's directional layout regions with the root view's effective interface direction and upgrade the native wire payload to schema version 5.
• Add an RTL example and migration guidance for assigning physical avoidance to Flutter's logical leading and trailing controls.

• Preserve the current UIKit interface idiom and window state on iOS versions before 26 while keeping unavailable layout-region values at zero.
• Select the supported window-scene coordinate-space API for iOS 13–25 and iOS 26 or later without calling newer layout APIs on older systems.

• Expose the current UIKit interface idiom and whether the iPadOS scene exactly covers its screen coordinate space.
• Distinguish iPad window-control avoidance from ordinary device corner adaptation.
• Upgrade the native wire payload to schema version 4.

• Expose the current UIKit view's physical effective corner radii on iOS 26.
• Upgrade the native wire payload to schema version 3.

• Add iOS 26 corner-adapted safe-area layout regions and directional safe-area avoidance values.
• Upgrade the native wire payload to schema version 2 while preserving the existing margin APIs and refresh behavior.

• Improve the Material and Cupertino examples with an opt-out comparison switch and correct toolbar spacing.
• Add before-and-after screenshots and a Chinese README.

• Add iOS 26 corner-adapted margin queries backed by UIView.LayoutRegion.
• Add directional horizontal and vertical avoidance data.
• Add a layout widget that refreshes on window and lifecycle changes.
• Support Swift Package Manager and CocoaPods from one Swift source tree.
• Add a Material/Cupertino AppBar example with live avoidance visualization.