fix: emit messaging_notification_opened only for default notification action on iOS.

[mtjkln]

Description

🔥 Fix: emit messaging_notification_opened only for default notification action on iOS.

Summary

Ensure messaging_notification_opened is emitted only when the default notification action is triggered on iOS.

Previously the event could be emitted for all UNNotificationResponse actions, including custom notification actions.

This change restricts the event emission to UNNotificationDefaultActionIdentifier, ensuring onNotificationOpenedApp is invoked only when the user taps the notification body.

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Why

When notifications include custom actions (e.g. Reply, Mark as Read), selecting those actions previously triggered messaging_notification_opened.

This caused onNotificationOpenedApp to fire and often resulted in unintended navigation or redirection in apps that rely on the default notification tap behavior for routing.

By emitting the event only for UNNotificationDefaultActionIdentifier, custom actions no longer trigger onNotificationOpenedApp, aligning the behavior with expected iOS notification interaction patterns.

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Related issues

N/A

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Release Summary

Fix iOS behavior where messaging_notification_opened could be emitted for custom notification actions. The event is now emitted only for the default notification tap.

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Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
  • Other (macOS, web)
• My change includes tests;
  • e2e tests added or updated in packages/**/e2e
  • jest tests added or updated in packages/**/__tests__
• I have updated TypeScript types that are affected by my change.
• This is a breaking change;
  • Yes
  • No

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Test Plan

1. Send a push notification via Firebase Cloud Messaging with custom actions (e.g. Reply).
2. Tap the notification body → onNotificationOpenedApp is triggered.
3. Tap a custom action → onNotificationOpenedApp is not triggered.
4. Verified behavior on a physical iOS device.

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[gemini-code-assist]

Code Review

This pull request updates the iOS messaging implementation to ensure that the 'messaging_notification_opened' event is only triggered when a notification is opened via the default action identifier. I have no feedback to provide.