修复上传素材切换侧栏

上传到画布后保持当前左侧侧栏状态。

补充上传工作流和画布 drop 回归断言。

更新跟踪记录并完成浏览器回归。

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

@@ -1608,9 +1608,17 @@ describe('ImageCanvasEditorView', () => {
         imageSrc: expect.stringMatching(/^data:image\/png;base64,/u),
       }),
     );
+    expect(screen.getByRole('heading', { name: '素材' })).toBeTruthy();
     expect(
-      screen.getByRole('button', { name: '选择图层测试上传.png' }),
-    ).toBeTruthy();
+      screen.getByRole('button', { name: '打开素材' }).getAttribute(
+        'aria-pressed',
+      ),
+    ).toBe('true');
+    expect(
+      screen
+        .getByRole('button', { name: '选择测试上传.png' })
+        .className.includes('image-canvas-editor__layer--selected'),
+    ).toBe(true);
   });
 
   it('drops files into the asset panel only once without creating canvas layers', async () => {