feat: add inpaint region functionality and related tools

- Enhanced cursor behavior for new tools: semantic select, mask lasso, and mask rectangle.
- Updated mask edit state to include mask asset ID and kind.
- Implemented inpaint region commands for adding, applying, and removing inpaint regions.
- Introduced new operations for lasso and semantic selection tools.
- Created UI components for candidate review and inpaint region management.
- Added tests for inpaint region commands to ensure functionality.
- Updated various components to support new inpaint features and improve user experience.

app/app.ts

@@ -11,6 +11,7 @@ import { viewportCommands } from "@commands/viewport";
 import { workspaceCommands } from "@commands/workspace";
 import { editorCommands } from "@commands/editor";
 import { projectCommands } from "@commands/project";
+import { inpaintRegionCommands } from "@commands/inpaint-region";
 import { createInitialAppState } from "@editor/initial-state";
 import { createAppStore } from "@editor/store";
 import { createGenerationWorkflow } from "@operations/generation/workflow";
@@ -19,7 +20,7 @@ import { createDocumentActions } from "./document-actions";
 export type ImageStudioApp = ReturnType<typeof createImageStudioApp>;
 
 export function createImageStudioApp(options?: { documentName?: string; createDefaultArtboard?: boolean }) {
-  const registry = createCommandRegistry([...projectCommands, ...viewportCommands, ...selectionCommands, ...documentCommands, ...toolCommands, ...generationCommands, ...transformCommands, ...historyCommands, ...commandPaletteCommands, ...workspaceCommands, ...editorCommands]);
+  const registry = createCommandRegistry([...projectCommands, ...viewportCommands, ...selectionCommands, ...documentCommands, ...inpaintRegionCommands, ...toolCommands, ...generationCommands, ...transformCommands, ...historyCommands, ...commandPaletteCommands, ...workspaceCommands, ...editorCommands]);
   const store = createAppStore(createInitialAppState(options?.documentName), registry);
   const generation = createGenerationWorkflow(store);
   const documentActions = createDocumentActions(store, generation);