v1.1.0

Two-Way Synchronization API

Geometry Query

• layoutSnapshot() - Get flat list of pane geometries with pixel coordinates
• treeSnapshot() - Get full tree structure for external consumption
• findSplit(_:) - Check if a split exists by UUID

Programmatic Updates

• setDividerPosition(_:forSplit:fromExternal:) - Set divider position with loop prevention
• setContainerFrame(_:) - Update container frame when window moves/resizes

Geometry Notifications

• didChangeGeometry delegate callback - Notified when any pane geometry changes
• shouldNotifyDuringDrag delegate callback - Opt-in to real-time notifications during divider drag

New Types

• LayoutSnapshot, PixelRect, PaneGeometry, ExternalTreeNode, ExternalPaneNode, ExternalSplitNode, ExternalTab

Debug Tools

• Debug window in Example app for testing synchronization features