feat: add build log file

lib/core/shims/ui_web.dart

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+// Conditional export
+export 'ui_web_fake.dart' if (dart.library.html) 'ui_web_real.dart';

lib/core/shims/ui_web_fake.dart

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+// Fake implementation for non-web platforms
+class PlatformViewRegistry {
+  /// Dummy implementation of registerViewFactory
+  void registerViewFactory(String viewId, dynamic cb) {
+    // No-op on non-web platforms
+  }
+}
+
+/// Global instance to match dart:ui_web API
+final platformViewRegistry = PlatformViewRegistry();

lib/core/shims/ui_web_real.dart

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+// Real implementation for web platforms
+export 'dart:ui_web';