feat(sw): viewer header logo menu and file list; simplify SW Storybook

SW Viewer Header (approved optional props, public export names unchanged at 170):
- SWViewerHeader: logoMenu, documents, activeDocumentId, onDocumentSelect,
  onDocumentOpen, documentOpenLabel; measured responsive toggles (full ->
  icons -> More) with the SWHeader More / file-list styling.
- SW AI guides, ExampleH, viewer/text-weight/theme-inheritance tests and the
  logo-document-menu tests with their QA record.

SW Storybook cleanup (Story IDs and test fixtures kept):
- Sidebar: Overview -> "SW Header" (first), 전체 Footer -> "SW Footer",
  Footer/Viewer responsive pages -> "Responsive More", Viewer content-variants
  -> "Settings Popup" (merges the settings popup page).
- Hidden by the verification tag (direct URL kept): Header Dropdown,
  Document Open, Interactive States, Document Dropdown, Hidden Sub Controls,
  Home Menu standalone; Footer tool groups / custom content / parts;
  SW/Theme; Viewer menu groups / item states / variable size / settings
  panel / Header + Dropdown.
- Removed demo UI: Overview size and callback output (demo data and
  selection only with &verification), Home Menu Figma node table and width
  demo, Header Responsive More reduced to 1440 / 768 / 390, Popup reopen
  button, property-panel comparison captions, Viewer context-menu demo
  (&verification only).
- Tests: storybook-inventory records the hidden and renamed Stories;
  overview / range-cross-browser / viewer open the demo controls with
  &verification; integrated-popup reloads the Story instead of the reopen
  button; dropdown-consolidation asserts Dropdown is hidden from the sidebar
  and still opens by its direct URL.

packages/sw/tests/dropdown-consolidation.browser.mjs

@@ -279,12 +279,17 @@ try {
   check('Overview keeps one Header at 49px and 16:9 Stage', await page.locator('header.hm-sw-header').count() === 1 && await page.locator('[data-preview-stage]').evaluate(e => Math.abs(e.getBoundingClientRect().width / e.getBoundingClientRect().height - 16 / 9) < 0.001) && await page.locator('header.hm-sw-header').evaluate(e => e.getBoundingClientRect().height === 49))
   await go('window-move-motion')
   check('Window Move Motion retains only nine 3x steps', JSON.stringify(await page.locator('section > header h2').allTextContents()) === JSON.stringify(['단계별 진행 (3배 확대)']) && await page.locator('[data-motion-time]').count() === 9 && await page.locator('.sw-story-zoom').first().evaluate(e => getComputedStyle(e).zoom === '3'))
+  // 2026-10-21 (SW Storybook menu cleanup, user request): Dropdown left the sidebar by the verification tag (storybook-inventory
+  // verificationTaggedIds); its ID and direct URL stay. Read the sidebar with the Header group open (SW Header page),
+  // since opening the hidden Story itself leaves the group collapsed and would make an absent link trivially true.
+  await page.goto(`${base}/?path=/story/sw-header--overview`)
+  await page.locator('a[href="/?path=/story/sw-header--overview"]').waitFor()
+  const headerLinks = await page.locator('a[href^="/?path=/story/sw-header--"]').evaluateAll(list => list.map(a => a.getAttribute('href')))
+  check('manager hides the Dropdown link under the open Header group, no Composed Controls submenu', headerLinks.length > 0 && !headerLinks.includes('/?path=/story/sw-header--composed-controls') && await page.getByRole('link', { name: 'Dropdown', exact: true }).count() === 0 && await page.getByRole('link', { name: 'Composed Controls', exact: true }).count() === 0, headerLinks)
   await page.goto(`${base}/?path=/story/sw-header--composed-controls`)
   await page.locator('#storybook-preview-iframe').waitFor()
-  const dropdownLink = page.getByRole('link', { name: 'Dropdown', exact: true })
-  await dropdownLink.waitFor()
-  await dropdownLink.scrollIntoViewIfNeeded()
-  check('manager shows a single Dropdown link directly under Header, no Composed Controls submenu', await dropdownLink.count() === 1 && await dropdownLink.getAttribute('href') === '/?path=/story/sw-header--composed-controls' && await page.getByRole('link', { name: 'Composed Controls', exact: true }).count() === 0)
+  await page.frameLocator('#storybook-preview-iframe').locator('[data-composed-controls]').waitFor()
+  check('Dropdown direct URL still opens the Story (ID sw-header--composed-controls)', await page.frameLocator('#storybook-preview-iframe').locator('[data-composed-controls]').count() === 1)
   check('retired Dropdown links absent in manager', await page.locator(retiredDropdownIds.map(id => `a[href*="${id}"]`).join(',')).count() === 0)
   await page.screenshot({ path: path.join(out, 'composed-manager.png'), fullPage: true })
   check('no browser console or page errors', report.errors.length === 0, report.errors)