Auto-grant iOS notification permission in screenshots workflow

[c0d3rb4b4]

Motivation

• Prevent the iOS system alert ("Eclipse Timer" would like to send you notifications) from appearing in simulator screenshots and polluting the captured artifacts.
• Make the screenshot pipeline resilient across runtimes that may require the app to be launched before simulator privacy changes persist.

Description

• Added an ensure_notification_permission helper in .github/workflows/ios-simulator-screenshots.yml that checks and grants notification permission via xcrun simctl privacy for the app bundle.
• Calls ensure_notification_permission before the first launch and again after launch to handle runtimes that only persist permission after an initial open.
• Changes are safe-failed with || true so older runtimes without simctl privacy support will not break the workflow.

Testing

• Validated the workflow YAML by running ruby -e "require 'yaml'; YAML.load_file('.github/workflows/ios-simulator-screenshots.yml')", which returned ok.
• Committed the updated workflow file successfully (git commit completed without error).

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Codex Task