Implements EdgeScrollManager to enable automatic scrolling during drag operations
Introduces new scroll management system that:
- Detects mouse proximity to container edges
- Provides variable scroll speed based on mouse position
- Compensates dragged elements during scrolling
Enhances drag-and-drop user experience with smooth scrolling
Introduces support for moving events between columns during drag
Tracks column changes and updates event positioning dynamically
Enables smooth cross-column event dragging experience
Introduces comprehensive data management system for calendar V2
- Adds IndexedDB storage with pluggable entity services
- Implements EventBus for decoupled event communication
- Creates data seeding mechanism for initial application setup
- Establishes sync and repository abstractions for flexible data handling
