fix: stabilize background operations and large embedding results

frontend/src/features/themes/ThemesView.spec.ts

@@ -96,7 +96,7 @@ it.each(mockCommunityThemes)('previews uninstalled $theme_id using its actual CS
 
 it('offers and applies the paper theme update without discarding the active theme', async () => {
   const store = useThemeStore()
-  const old = await inspectThemePackage(paperPackage.replace('version: 1.8.0', 'version: 1.6.1'))
+  const old = await inspectThemePackage(paperPackage.replace(/^version: .+$/m, 'version: 1.6.1'))
   await store.installThemeFromInspection(old.manifest, old.css)
   store.applyTheme('paper-moments')
   wrapper = mount(ThemesView, { global: { stubs: { MarkdownContent: true } } })
@@ -105,6 +105,6 @@ it('offers and applies the paper theme update without discarding the active them
   const card = wrapper.findAll('article.theme-card').find(item => item.text().includes('Paper Moments'))!
   await card.findAll('button').find(button => button.text() === '更新')!.trigger('click')
   await flushPromises()
-  expect(store.allThemes.find(theme => theme.theme_id === 'paper-moments')?.version).toBe('1.8.0')
+  expect(store.allThemes.find(theme => theme.theme_id === 'paper-moments')?.version).toBe('1.8.1')
   expect(document.getElementById('theme-style-paper-moments')!.textContent).toContain('.surface-nested')
 })