feat: finish native customization and platform seams

packages/ios/fixtures/native-screen/NativeLayoutUnitTests.swiftmodified+18-0

Changes to packages/ios/fixtures/native-screen/NativeLayoutUnitTests.swift

		⋯16 linesShow the 16 lines above this hunk@@ -17,6 +17,24 @@ final class NativeLayoutUnitTests: XCTestCase {
17	17	return controller
18	18	}
19	19
	20	+ func testNativeScreenUsesConfiguredUIKitAppearance() {
	21	+ var config = CraftConfig()
	22	+ config.appearance = "light"
	23	+ let light = CraftNativeScreenController(config: config)
	24	+ light.loadViewIfNeeded()
	25	+ XCTAssertEqual(light.overrideUserInterfaceStyle, .light)
	26	+
	27	+ config.appearance = "dark"
	28	+ let dark = CraftNativeScreenController(config: config)
	29	+ dark.loadViewIfNeeded()
	30	+ XCTAssertEqual(dark.overrideUserInterfaceStyle, .dark)
	31	+
	32	+ config.appearance = "system"
	33	+ let system = CraftNativeScreenController(config: config)
	34	+ system.loadViewIfNeeded()
	35	+ XCTAssertEqual(system.overrideUserInterfaceStyle, .unspecified)
	36	+ }
	37	+
20	38	func testReturningToAnUnchangedThemeRetainsTextAndScrollGeometry() throws {
21	39	let rows: [[String: Any]] = (0..<100).map { index in
22	40	["id": "row-\(index)", "type": "Text", "props": ["testID": "row-\(index)"],