复用内联选项按钮收口缩放入口

编辑器顶部缩放百分比触发器改为复用 PlatformInlineOptionButton。

保留缩放入口局部尺寸和 hover 视觉覆盖，移除重复混入编辑器图标按钮基础规则。

补充编辑器测试断言共享按钮原语，并更新 TRACKING。

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

@@ -591,7 +591,9 @@ describe('ImageCanvasEditorView', () => {
   it('adds assets from the sidebar and supports zoom buttons', () => {
     render(<ImageCanvasEditorView />);
 
-    expect(screen.getByRole('button', { name: '当前缩放比例 82%' })).toBeTruthy();
+    expect(
+      screen.getByRole('button', { name: '当前缩放比例 82%' }).className,
+    ).toContain('platform-inline-option-button');
 
     fireEvent.click(screen.getByRole('button', { name: '当前缩放比例 82%' }));
     fireEvent.click(screen.getByRole('menuitem', { name: '放大' }));