fix: 合并图库显示与操作入口

移除顶部主图统计，将刷新图库和批量生图改为带悬浮说明的图标按钮，并移动到布局切换按钮之后。

tests/features/subject-images/asset-impact.test.ts

@@ -174,7 +174,7 @@ describe('过期首帧到具体素材定位', () => {
         await flushPromises()
         expect(fetcher).toHaveBeenCalledTimes(count)
         expect(wrapper!.get('.form-image-grid').element).toBe(grid)
-        const refresh = wrapper!.findAll('button').find(button => button.text().includes('刷新图库'))!
+        const refresh = wrapper!.get('[aria-label="刷新图库"]')
         await refresh.trigger('click')
         await flushPromises()
         expect(fetcher.mock.calls.length).toBeGreaterThan(count)
@@ -185,7 +185,7 @@ describe('过期首帧到具体素材定位', () => {
 
     it('切换镜头时筛选、关联说明和图片共用稳定纵向容器，长关联列表单独横向滚动', async () => {
         const { keyframes, videos, references, fetcher } = await gallery('?sourceShotId=shot-target')
-        expect(wrapper!.find('.workspace-heading-scroll').exists()).toBe(true)
+        expect(wrapper!.find('.workspace-heading-scroll').exists()).toBe(false)
         const scroll = wrapper!.get<HTMLElement>('.workspace-scroll > .n-scrollbar-container').element
         const content = wrapper!.get('.workspace-scroll-content').element
         const sticky = wrapper!.get('.gallery-sticky-controls').element
@@ -207,10 +207,7 @@ describe('过期首帧到具体素材定位', () => {
                   })
                 : original(url, init)
         )
-        await wrapper!
-            .findAll('button')
-            .find(button => button.text() === '刷新图库')!
-            .trigger('click')
+        await wrapper!.get('[aria-label="刷新图库"]').trigger('click')
         await flushPromises()
         wrapper!
             .findAllComponents(NSelect)
@@ -414,7 +411,7 @@ describe('过期首帧到具体素材定位', () => {
     it('身份主图真的过期时显示独立顶部警告，并可从定位模式筛选所有过期素材', async () => {
         const { first, router } = await gallery('?subjectFormId=form-other')
         first.subject.identity = { id: 'identity-1', isLocked: true, images: [{ id: 'anchor-new' }] }
-        const refresh = wrapper!.findAll('button').find(button => button.text() === '刷新图库')!
+        const refresh = wrapper!.get('[aria-label="刷新图库"]')
         await refresh.trigger('click')
         await flushPromises()
         expect(wrapper!.text()).toContain('形态主图需要更新')
@@ -432,10 +429,7 @@ describe('过期首帧到具体素材定位', () => {
     it('仅视频接口报告过期时也显示警告，并明确两种检查不一致', async () => {
         const { keyframes } = await gallery('?sourceShotId=shot-target&subjectFormId=form-special')
         keyframes.items[0]!.primaryKeyframeStale = false
-        await wrapper!
-            .findAll('button')
-            .find(button => button.text() === '刷新图库')!
-            .trigger('click')
+        await wrapper!.get('[aria-label="刷新图库"]').trigger('click')
         await flushPromises()
         expect(wrapper!.get('[data-keyframe-impact]').text()).toContain('检查结果不一致')
         expect(wrapper!.get('.form-image-card').text()).toContain('不要据此重复生图')
@@ -444,10 +438,7 @@ describe('过期首帧到具体素材定位', () => {
         const { keyframes, videos } = await gallery('?sourceShotId=shot-target&subjectFormId=form-special')
         keyframes.items[0]!.primaryKeyframeStale = false
         videos.items[0]!.issues = []
-        await wrapper!
-            .findAll('button')
-            .find(button => button.text() === '刷新图库')!
-            .trigger('click')
+        await wrapper!.get('[aria-label="刷新图库"]').trigger('click')
         await flushPromises()
         expect(wrapper!.find('[data-keyframe-impact]').exists()).toBe(false)
         expect(wrapper!.text()).toContain('未被标记为过期')
@@ -467,10 +458,7 @@ describe('过期首帧到具体素材定位', () => {
                 ? Promise.resolve(new Response('{}', { status: 500 }))
                 : original(url, init)
         )
-        await wrapper!
-            .findAll('button')
-            .find(button => button.text() === '刷新图库')!
-            .trigger('click')
+        await wrapper!.get('[aria-label="刷新图库"]').trigger('click')
         await flushPromises()
         expect(wrapper!.text()).toContain('暂时无法确认有无过期首帧')
         expect(wrapper!.findAll('.form-image-card')).toHaveLength(3)