fix(viewer): remove lightbox top-bar settings menu (user request) — close button + counter only; Esc closes directly

Co-Authored-By: Claude Code <noreply@anthropic.com>

apps/viewer/src/__tests__/lightbox.spec.ts

@@ -382,28 +382,17 @@ describe('photo lightbox dark viewer (UI-02 V04)', () => {
     expect(lightbox(wrapper).emitted('update:photoId')).toEqual([['p1']]);
   });
 
-  it('more menu exposes the reduce-motion toggle; Escape closes the menu before the viewer', async () => {
+  it('top bar has no settings/more menu (removed per user request 2026-09-23); Escape closes the viewer directly', async () => {
     const wrapper = mountLightbox('p2');
     await flushPromises();
 
-    await wrapper.find('.viewer-more').trigger('click');
-    expect(wrapper.find('.more-popover').exists()).toBe(true);
-    const item = wrapper.find('.more-item');
-    expect(item.text()).toContain('减少动画');
-    expect(item.attributes('aria-checked')).toBe('false');
-    await item.trigger('click');
-    expect(wrapper.find('.more-item').attributes('aria-checked')).toBe('true');
-    // 还原模块级偏好单例，避免影响后续用例。
-    await wrapper.find('.more-item').trigger('click');
+    // 「⋯」更多菜单（减少动画开关）已按用户要求移除：顶部仅保留关闭与序号。
+    expect(wrapper.find('.viewer-more').exists()).toBe(false);
+    expect(wrapper.find('.more-menu').exists()).toBe(false);
 
     keydown('Escape');
     await flushPromises();
-    expect(wrapper.find('.more-popover').exists()).toBe(false); // 先收菜单
-    expect(lightbox(wrapper).emitted('close')).toBeUndefined(); // 不关查看器
-
-    keydown('Escape');
-    await flushPromises();
-    expect(lightbox(wrapper).emitted('close')).toHaveLength(1);
+    expect(lightbox(wrapper).emitted('close')).toHaveLength(1); // Esc 直接关查看器
   });
 
   it('moves focus into the dialog on open and returns it to the trigger on close', async () => {

apps/viewer/src/components/PhotoLightbox.vue

@@ -11,7 +11,6 @@ import HeartParticles from './viewer/HeartParticles.vue';
 import InteractionNotice from './viewer/InteractionNotice.vue';
 import ThumbnailStrip, { type ThumbnailItem } from './viewer/ThumbnailStrip.vue';
 import ShareSheet from './viewer/ShareSheet.vue';
-import { reducedMotion, toggleReducedMotion } from '../ui/prefs';
 import { positionDisplay } from '../viewer/position';
 import { MIN_SCALE, panBy, resetZoom, wheelFactor, zoomAt, type ZoomState } from '../viewer/zoom';