让节点删除默认落到选中节点所在的树

src/view/ui-editor/useUiEditorPage.ts 的 deleteNode 默认 treeId 改为 treeForSelectedNode?.src_ui_design ?? activeImageId：选中节点可以来自非激活界面图，Inspector 删除按钮不给 treeId 时会静默删不掉
src/view/ui-editor/uiEditorKeyboardShortcuts.ts 与 view/ui-editor/index.tsx 去掉键盘删除强制传 activeImageId 的接线，treeId 改为可选，同时删掉已无消费者的 activeImageId 入参
tests/uiEditorPage.test.ts 补「非激活树里的节点默认也能删除」用例，uiEditorKeyboardShortcuts.test.ts 断言改为只传节点 id

apps/ai-game-creator-shell/src/view/ui-editor/index.tsx

@@ -114,21 +114,19 @@ export default function UiEditorPage({
   const historyUndo = session.history.undo;
   const historyRedo = session.history.redo;
   const selectedNodeId = session.input.selectedNodeId;
-  const activeImageId = session.input.activeImageId;
   const deleteNode = session.input.deleteNode;
 
   useEffect(() => {
     const onKeyDown = (event: KeyboardEvent) =>
       handleUiEditorKeyDown(event, {
         selectedNodeId,
-        activeImageId,
         deleteNode,
         historyUndo,
         historyRedo,
       });
     window.addEventListener('keydown', onKeyDown);
     return () => window.removeEventListener('keydown', onKeyDown);
-  }, [activeImageId, deleteNode, historyRedo, historyUndo, selectedNodeId]);
+  }, [deleteNode, historyRedo, historyUndo, selectedNodeId]);
 
   async function save(afterReturn = false) {
     const result = await session.save.save();

apps/ai-game-creator-shell/src/view/ui-editor/uiEditorKeyboardShortcuts.ts

@@ -5,8 +5,8 @@ type DeleteResult = { ok: boolean } | undefined;
 
 export type UiEditorKeyboardActions = {
   selectedNodeId: NodeId | null;
-  activeImageId: UIDesignImageId | null;
-  deleteNode: (nodeId: NodeId, treeId: UIDesignImageId) => DeleteResult;
+  /** 省略 treeId 时由调用方按选中节点定位所在 UI 树。 */
+  deleteNode: (nodeId: NodeId, treeId?: UIDesignImageId | null) => DeleteResult;
   historyUndo: () => boolean;
   historyRedo: () => boolean;
 };
@@ -50,11 +50,8 @@ export function handleUiEditorKeyDown(
     !event.shiftKey &&
     !isInteractiveTarget(event.target)
   ) {
-    if (actions.selectedNodeId && actions.activeImageId) {
-      const result = actions.deleteNode(
-        actions.selectedNodeId,
-        actions.activeImageId,
-      );
+    if (actions.selectedNodeId) {
+      const result = actions.deleteNode(actions.selectedNodeId);
       if (result?.ok) {
         event.preventDefault();
         event.stopPropagation();

apps/ai-game-creator-shell/src/view/ui-editor/useUiEditorPage.ts

@@ -875,7 +875,12 @@ export function useUiEditorSession(
   }
 
   const deleteNode = useCallback(
-    (nodeId: NodeId, treeId = activeImageId) => {
+    (
+      nodeId: NodeId,
+      // 不给 treeId 时落到选中节点真正所在的树：选中节点可以来自非激活界面图，
+      // 按 activeImageId 找会静默删不掉。
+      treeId = treeForSelectedNode?.src_ui_design ?? activeImageId,
+    ) => {
       if (!treeId) return;
       const tree = editorUiTrees.find(
         (candidate) => candidate.src_ui_design === treeId,
@@ -892,7 +897,13 @@ export function useUiEditorSession(
       }
       return result;
     },
-    [activeImageId, editorDeleteNode, editorUiTrees, selectedNodeId],
+    [
+      activeImageId,
+      editorDeleteNode,
+      editorUiTrees,
+      selectedNodeId,
+      treeForSelectedNode,
+    ],
   );
 
   function selectSprite(id: SpriteAssetId) {

apps/ai-game-creator-shell/tests/uiEditorKeyboardShortcuts.test.ts

@@ -25,7 +25,6 @@ describe('ui editor keyboard shortcuts', () => {
     const listener = (event: KeyboardEvent) =>
       handleUiEditorKeyDown(event, {
         selectedNodeId: null,
-        activeImageId: null,
         deleteNode: vi.fn(),
         historyUndo,
         historyRedo,
@@ -47,7 +46,6 @@ describe('ui editor keyboard shortcuts', () => {
     const listener = (event: KeyboardEvent) =>
       handleUiEditorKeyDown(event, {
         selectedNodeId: null,
-        activeImageId: null,
         deleteNode: vi.fn(),
         historyUndo,
         historyRedo,
@@ -70,7 +68,6 @@ describe('ui editor keyboard shortcuts', () => {
       const listener = (event: KeyboardEvent) =>
         handleUiEditorKeyDown(event, {
           selectedNodeId: 'node-1',
-          activeImageId: 'page-1',
           deleteNode,
           historyUndo: vi.fn(() => true),
           historyRedo: vi.fn(() => true),
@@ -93,7 +90,6 @@ describe('ui editor keyboard shortcuts', () => {
     const listener = (event: KeyboardEvent) =>
       handleUiEditorKeyDown(event, {
         selectedNodeId: 'node-1',
-        activeImageId: 'page-1',
         deleteNode,
         historyUndo: vi.fn(() => true),
         historyRedo: vi.fn(() => true),
@@ -103,7 +99,7 @@ describe('ui editor keyboard shortcuts', () => {
     fireEvent.click(zoomIn);
     fireEvent.keyDown(window, { key: 'Delete' });
 
-    expect(deleteNode).toHaveBeenCalledWith('node-1', 'page-1');
+    expect(deleteNode).toHaveBeenCalledWith('node-1');
     window.removeEventListener('keydown', listener);
   });
 });

apps/ai-game-creator-shell/tests/uiEditorPage.test.ts

@@ -596,6 +596,30 @@ describe('UiEditorPage', () => {
     expect(result.current.canvas.hiddenNodeIds.size).toBe(0);
   });
 
+  it('deletes an inspector node from its own tree without an explicit tree id', async () => {
+    const { result } = await renderLoadedSession(
+      stateWithPages(['page-a', 'page-b']),
+    );
+    let otherTreeNodeId: string | undefined;
+    act(() => {
+      const inserted = result.current.input.insertNode('page-b-root', 'page-b');
+      if (inserted?.ok) otherTreeNodeId = inserted.value;
+    });
+    expect(otherTreeNodeId).toBeTruthy();
+
+    // 选中非激活界面图里的节点：Inspector 删除按钮不给 treeId，必须落到它所在的树。
+    act(() => result.current.input.selectDesignImage('page-a'));
+    act(() => result.current.input.selectNode(otherTreeNodeId!));
+    act(() => result.current.inspector.deleteNode(otherTreeNodeId!));
+
+    const otherTree = result.current.canvas.uiTrees.find(
+      (tree) => tree.src_ui_design === 'page-b',
+    );
+    expect(otherTree?.root.children.map((child) => child.id)).not.toContain(
+      otherTreeNodeId,
+    );
+  });
+
   it('clears selection when deleting a node removes the selected descendant', async () => {
     const { result } = await renderLoadedSession(stateWithPages(['page']));
     const rootId = 'page-root';