feat: implement Phase 14 settings & preferences with localStorage persistence
Added comprehensive settings system with 5 categories:
- Recording Settings (existing, integrated)
- Audio Settings (buffer size, sample rate, auto-normalize)
- Editor Settings (auto-save interval, undo limit, snap-to-grid, grid resolution, default zoom)
- Interface Settings (theme, waveform color, font size, default track height)
- Performance Settings (peak/waveform quality, spectrogram toggle, max file size)
Features:
- useSettings hook with localStorage persistence
- Automatic save/load of all settings
- Category-specific reset buttons
- Expanded GlobalSettingsDialog with 5 tabs
- Full integration with AudioEditor
- Settings merge with defaults on load (handles updates gracefully)
Settings are persisted to localStorage and automatically restored on page load.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Sebastian Krüger
adb99a2c33