v0.27.1

0.27.1

• Guard apply plugin: "kotlin-android" against AGP 9, which ships with built-in Kotlin support (android.builtInKotlin=true) and conflicts with the explicit plugin application. Keeps AGP < 9 behavior unchanged (fixes #482).
• Sync ios/facebook_app_events.podspec version with pubspec.yaml. The podspec had been stale at 0.25.0 across the v0.26.x and v0.27.0 releases, causing CocoaPods consumers to resolve the wrong plugin version. A release-process note was added to CONTRIBUTING.md requiring both files to be bumped together (PR #484).
• Document that setDataProcessingOptions is a no-op on iOS since Meta removed the underlying API in Facebook iOS SDK 18.x. Use Meta's Data Use Checkup tooling for iOS data-use configuration (PR #484).
• Expand Dart unit test coverage to include previously-uncovered public methods (clearUserData, clearUserID, flush, getApplicationId, getAnonymousId, setUserID, setAutoLogAppEventsEnabled, setDataProcessingOptions, setAdvertiserTracking, logPushNotificationOpen, logRated, logInitiatedCheckout, logStartTrial, logAddToWishlist) (PR #484).
• Raise example app SDK constraints to match the plugin floor (sdk: '>=3.3.0 <4.0.0', flutter: '>=3.19.0') and set targetSdk = 35 explicitly in the Android module (PR #484).