v0.3.0: Media Item Event Support

✨ Features

Typed Media Item Event Support

• Added MediaItemEvent type with strongly-typed fields:
  • action: .added, .updated, .deleted, or .played
  • itemId: Optional item identifier
  • mediaType: .track, .album, .artist, .playlist, or .unknown
  • data: Full event data dictionary
• New mediaItemUpdates publisher on EventPublisher
• Comprehensive test coverage for all media item event scenarios

🐛 Fixes

• Resolved SwiftFormat numeric literal formatting issues
• Refactored EventPublisher.publish() to meet SwiftLint function length requirements
• Improved code organization with dedicated event routing methods

📝 Changes

• Extracted event routing logic into private helper methods for better maintainability
• All CI checks passing (SwiftFormat, SwiftLint, 76 unit tests)

🔗 Full Changelog

v0.2.1...v0.3.0

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