75e1ac93db
Remove explicit cancel callback and centralize dismissal: clicking the canvas now dismisses active UI extraction (handled in ImageCanvasEditorView) instead of relying on an onCancel prop. Simplify ImageCanvasStageView and ImageCanvasUiAssetExtractionOverlayView APIs by removing onCancel and related UI. Improve preview bounds and rendering: add normalization to mark bounds, clamp to source dimensions, and render crop previews using an absolutely-positioned <img> for accurate, coordinate-based previews. Update styles for toolbar active states and preview image layout, and reduce SVG stroke width. Update tests and docs to reflect new behaviors and UI wording (tool highlight, accurate crop preview, and dismissal behavior).