修复画布 Agent 默认被任务列表隐藏

打开画布时 Agent 开关启用则保持 Agent 默认展开。

恢复任务自动打开任务列表时不再抢占 Agent 默认态。

用户手动打开任务列表时仍按右侧面板互斥关闭 Agent。

补充恢复任务场景下 Agent 默认显示的回归测试。

src/components/image-editor/ImageCanvasEditorView.test.tsx

@@ -1449,6 +1449,40 @@ describe('ImageCanvasEditorView', () => {
     expect(screen.queryByLabelText('发送给画布 Agent')).toBeNull();
   });
 
+  it('keeps the Agent conversation panel open when restored tasks auto-open the task list', async () => {
+    enableEditorAgentSidebarForTest();
+    loadOrCreateRecentEditorProjectMock.mockResolvedValueOnce({
+      projectId: 'editor-project-with-restored-task',
+      title: '恢复任务项目',
+      viewport: { x: 0, y: 0, scale: 1 },
+      layers: [
+        ...defaultEditorProjectLayers,
+        {
+          layerId: 'generation-dialog:restored-task',
+          resourceId: 'generation-dialog:restored-task',
+          itemType: 'generation-dialog',
+          dialog: {
+            id: 'restored-task',
+            mode: 'generate',
+            prompt: '继续生成',
+            status: 'idle',
+          },
+        },
+      ],
+      resources: defaultEditorProjectResources,
+      updatedAt: '2026-07-06T00:00:00.000Z',
+    });
+
+    render(<ImageCanvasEditorView />);
+
+    expect(await screen.findByLabelText('发送给画布 Agent')).toBeTruthy();
+    await waitFor(() => {
+      expect(
+        screen.queryByRole('complementary', { name: '画布任务列表' }),
+      ).toBeNull();
+    });
+  });
+
   it('keeps the left resource sidebar independent from right-side task and Agent panels', async () => {
     enableEditorAgentSidebarForTest();
     render(<ImageCanvasEditorView />);

src/components/image-editor/ImageCanvasEditorView.tsx

@@ -1199,13 +1199,19 @@ export function ImageCanvasEditorView({
     [toggleSidebarPanel],
   );
   useEffect(() => {
+    if (!isAgentConversationEnabled && isAgentConversationOpen) {
+      setIsAgentConversationOpen(false);
+      return;
+    }
     if (
-      (!isAgentConversationEnabled || generationSurface.isTaskSidebarOpen) &&
+      isAgentConversationEnabled &&
+      generationSurface.isTaskSidebarOpen &&
       isAgentConversationOpen
     ) {
-      setIsAgentConversationOpen(false);
+      generationSurface.toggleTaskSidebar();
     }
   }, [
+    generationSurface,
     generationSurface.isTaskSidebarOpen,
     isAgentConversationEnabled,
     isAgentConversationOpen,