Release v0.4.0

[velkymx]

Summary

• Data table library: Replaced grid/card views with a proper data table with sortable columns (Title, Artist, Time, Album, Year, Genre, ♥, Actions), built-in search, genre filter, and pagination
• Metadata editor: Shows original filename, all editable tag fields (title, artist, album, year, genre)
• Spacebar play/pause: Global keyboard shortcut for playback control
• Keys game chord detection: Real-time FFT chromagram analysis detects actual chords from the playing song — each song generates unique gameplay based on its harmonic content
• Orb visualizer: Dramatically increased bass pulsing, bloom, camera dynamics, and particle expansion for a more immersive reactive experience
• macOS 26 support: Continued compatibility work
• Version bump: 0.3.0 → 0.4.0

Test plan

• Verify library data table renders with correct columns, sorting, pagination
• Test search and genre filter reset pagination to page 1
• Open metadata editor and confirm filename is displayed
• Press spacebar to toggle play/pause (verify it doesn't trigger in text inputs)
• Play a song in Keys game and verify chord label updates in HUD
• Confirm Orb visualizer pulses visibly with bass-heavy music
• Build and run on macOS