feat: implement inpainting functionality with mask handling

- Added `createMaskedPixelReplacementSource` function to handle pixel replacement using inpainting.
- Introduced `buildInpaintBundle` to prepare inpainting data including mask generation and validation.
- Created utility functions for mask operations such as `applyMaskedContentModeToRgba`, `expandRectWithinBounds`, and others for mask manipulation.
- Developed tests for inpainting preparation and mask raster utilities to ensure functionality and correctness.
- Implemented mask raster operations including inversion, feathering, blurring, and more.

view/canvas/renderFrame.ts

@@ -1,6 +1,6 @@
 import type { Rect, Vec2D } from "@core/geometry";
 import type { RenderFrame } from "@renderer/index";
-import type { AppState, BrushPreviewState, BrushStrokePreviewState, EditorState, MaskEditState, SelectionState, ViewportState } from "@editor/state";
+import type { AppState, BrushPreviewState, BrushStrokePreviewState, EditorState, GenerationState, MaskEditState, SelectionState, ViewportState } from "@editor/state";
 import type { BrushSettings, InteractionMode } from "@editor/tools";
 import type { TransformSession, TransformTarget } from "@editor/transform";
 
@@ -23,6 +23,7 @@ function visualEditorStatesEqual(a: EditorState, b: EditorState): boolean {
     maskEditStatesEqual(a.maskEdit, b.maskEdit) &&
     brushPreviewStatesEqual(a.brushPreview, b.brushPreview) &&
     brushStrokePreviewStatesEqual(a.brushStrokePreview, b.brushStrokePreview) &&
+    generationStatesEqual(a.generation, b.generation) &&
     visualToolStatesEqual(a.tools, b.tools)
   );
 }
@@ -64,6 +65,10 @@ function brushStrokePreviewStatesEqual(a: BrushStrokePreviewState | undefined, b
   return a.layerId === b.layerId && a.assetId === b.assetId && a.source === b.source;
 }
 
+function generationStatesEqual(a: GenerationState, b: GenerationState): boolean {
+  return a === b;
+}
+
 function visualToolStatesEqual(a: EditorState["tools"], b: EditorState["tools"]): boolean {
   return a.activeTool === b.activeTool && interactionModesEqual(a.interactionMode, b.interactionMode) && brushSettingsEqual(a.brush, b.brush);
 }