canvas_kit 0.5.2

canvas_kit: ^0.5.2 copied to clipboard

Metadata updates:

• pubspec: add topics (flutter, canvas, pan-and-zoom, infinite-canvas, graphics) for better pub.flutter-io.cn discoverability
• chore: bump patch version to 0.5.2

Docs and publishing fixes:

• README: switch logo and demo GIF to raw GitHub URLs so they render on pub.flutter-io.cn
• README: add "Quick Demo" section and badges/header tweaks

Initial public preview of Canvas Kit.

• New widget: CanvasKit (formerly InfiniteCanvas)
• Controller: CanvasKitController with programmatic pan/zoom helpers
• Items: CanvasItem with world and viewport anchoring, lockZoom, estimatedSize
• Layers: backgroundBuilder and foregroundLayers receive live Matrix4 transform
• Modes: InteractionMode.interactive and InteractionMode.programmatic (with gestureOverlayBuilder)
• Optional world bounds with auto-fit and boundary constraints
• Example app with multiple demos (interactive, programmatic, bounds, node editor, snake, parallax)