拆分图片画布舞台交互

新增画布舞台交互 hook，承接选择、框选、拖拽、平移和小地图 pointer 状态机

更新历史恢复清理入口，撤销重做时统一重置舞台交互状态

补充舞台交互 hook 测试并更新前端拆分文档和 TRACKING 记录

src/components/image-editor/useCanvasHistory.ts

@@ -5,12 +5,8 @@ import type {
   CanvasGenerationDialogState,
   CanvasHistorySnapshot,
   CanvasLayer,
-  CanvasMarqueeState,
-  CanvasContextMenuState,
   CanvasViewport,
   GenerateDialogState,
-  ImageContextMenuState,
-  SnapGuide,
 } from './ImageCanvasEditorTypes';
 
 type CanvasHistoryRefs = {
@@ -36,12 +32,7 @@ type CanvasHistorySetters = {
 type CanvasHistoryResetters = {
   setHoveredLayerId: (layerId: string | null) => void;
   setMetadataLayer: (layer: CanvasLayer | null) => void;
-  setCanvasMarquee: (marquee: CanvasMarqueeState | null) => void;
-  setSnapGuide: (guide: SnapGuide | null) => void;
-  setImageContextMenu: (menu: ImageContextMenuState | null) => void;
-  setContextMenu: (menu: CanvasContextMenuState | null) => void;
-  setIsPanning: (isPanning: boolean) => void;
-  clearDragState: () => void;
+  resetCanvasInteractionState: () => void;
 };
 
 function cloneGenerateDialog(dialog: GenerateDialogState): GenerateDialogState {
@@ -104,12 +95,7 @@ export function useCanvasHistory({
       setters.setSelectedLayerIds([...snapshot.selectedLayerIds]);
       resetters.setHoveredLayerId(null);
       resetters.setMetadataLayer(null);
-      resetters.setCanvasMarquee(null);
-      resetters.setSnapGuide(null);
-      resetters.setImageContextMenu(null);
-      resetters.setContextMenu(null);
-      resetters.setIsPanning(false);
-      resetters.clearDragState();
+      resetters.resetCanvasInteractionState();
     },
     [resetters, setters],
   );