抽取平台批量操作工具栏

新增 PlatformBatchActionToolbar 和组件测试

项目页选择模式底部工具栏复用平台批量工具栏

更新 TRACKING 记录批量操作组件收口

src/components/project/ProjectGalleryView.tsx

@@ -17,6 +17,7 @@ import {
   type EditorProjectSnapshot,
 } from '../../services/image-editor/editorProjectClient';
 import { PlatformActionButton } from '../common/PlatformActionButton';
+import { PlatformBatchActionToolbar } from '../common/PlatformBatchActionToolbar';
 import { PlatformEmptyState } from '../common/PlatformEmptyState';
 import {
   PlatformFloatingMenu,
@@ -374,7 +375,7 @@ export function ProjectGalleryView({ onOpenProject }: ProjectGalleryViewProps) {
       </UnifiedModal>
 
       {isSelectionMode ? (
-        <div className="project-gallery__batch-toolbar" role="toolbar" aria-label="批量操作">
+        <PlatformBatchActionToolbar>
           <PlatformActionButton
             tone="secondary"
             size="sm"
@@ -407,7 +408,7 @@ export function ProjectGalleryView({ onOpenProject }: ProjectGalleryViewProps) {
           <PlatformActionButton tone="secondary" size="sm" onClick={closeSelectionMode}>
             取消
           </PlatformActionButton>
-        </div>
+        </PlatformBatchActionToolbar>
       ) : null}
     </main>
   );