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/ai/examples/ExampleH-ViewerMode.tsx

@@ -12,7 +12,6 @@ const Icon = ({ d }: { d: string }) => (
   <svg viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true"><path d={d} /></svg>
 )
 const icons = {
-  open: <Icon d="M3 7h6l2 2h10v10H3z" />,
   fit: <Icon d="M3 8V3h5M16 3h5v5M21 16v5h-5M8 21H3v-5" />,
   layers: <Icon d="M12 3l9 5-9 5-9-5 9-5zM3 13l9 5 9-5" />,
   options: <Icon d="M4 6h10M18 6h2M4 12h4M12 12h8M4 18h12M20 18h0" />,
@@ -28,25 +27,23 @@ export function ExampleHViewerMode({ onEvent }: { onEvent?: (name: string) => vo
   const [zoomSpeed, setZoomSpeed] = useState(1)
   const [about, setAbout] = useState(false)
 
+  // File open: the header button after the logo (icon + label, icon only when the header is narrow). File name click:
+  // the sample list only (no Open / + New).
+  const openFile = () => onEvent?.("file:open")
+  const samples = [{ id: "sample-a", name: "BasicSample.dwg", title: "기본 도면 · DWG" }, { id: "sample-b", name: "simple.dxf", title: "기본 도형 · DXF" }]
   const groups: SWViewerHeaderGroup[] = [
-    { id: "file", label: "파일", items: [
-      { type: "button", id: "open", label: "파일 열기", icon: icons.open, iconOnlyBelow: 560 },
-      { type: "menu", id: "samples", label: "샘플", moreLabel: "샘플 도면", collapseBelow: 1180, entries: [
-        { type: "item", id: "sample-a", label: "기본 도면 · DWG", onSelect: () => setFileName("BasicSample.dwg") },
-        { type: "submenu", id: "recent", label: "최근 도면", entries: [{ type: "item", id: "recent-1", label: "simple.dxf", onSelect: () => setFileName("simple.dxf") }] },
-      ] },
-    ] },
     { id: "space", label: "도면 공간", surface: "field", hidden: !fileName, items: [
       { type: "tabs", id: "space", label: "모델과 배치 선택", collapseBelow: 1180, value: space, onValueChange: setSpace,
         options: [{ value: "model", label: "Model", count: 1200 }, { value: "layout", label: "Layout", count: 40 }] },
     ] },
     { id: "view", label: "화면 보기", surface: "field", items: [
-      { type: "button", id: "fit", label: "전체 보기", icon: icons.fit, iconOnlyBelow: 560, disabled: !fileName },
+      // Measured steps: full while it fits, icon only next, then into More (the numbers only give the order).
+      { type: "button", id: "fit", label: "전체 보기", icon: icons.fit, iconOnlyBelow: 560, collapseBelow: 1180, disabled: !fileName },
       { type: "switch", id: "depth", label: "2.5D", checked: depth, collapseBelow: 1180, onCheckedChange: setDepth },
     ] },
     { id: "panels", label: "패널", placement: "end", items: [
-      { type: "toggle", id: "layers", label: "레이어", icon: icons.layers, pressed: panels.layers, collapseBelow: 900, onPressedChange: layers => setPanels({ ...panels, layers }) },
-      { type: "toggle", id: "options", label: "설정", icon: icons.options, pressed: panels.options, collapseBelow: 900, onPressedChange: options => setPanels({ ...panels, options }) },
+      { type: "toggle", id: "layers", label: "레이어", icon: icons.layers, pressed: panels.layers, iconOnlyBelow: 900, onPressedChange: layers => setPanels({ ...panels, layers }) },
+      { type: "toggle", id: "options", label: "설정", icon: icons.options, pressed: panels.options, iconOnlyBelow: 900, onPressedChange: options => setPanels({ ...panels, options }) },
     ] },
   ]
 
@@ -54,6 +51,7 @@ export function ExampleHViewerMode({ onEvent }: { onEvent?: (name: string) => vo
     <>
       {/* No logo prop: nothing is drawn on the cap (no "HM" text). Pass logoSrc / logo to show the program's logo. */}
       <SWViewerHeader documentTitle={fileName} groups={groups}
+        documents={samples} activeDocumentId={samples.find(sample => sample.name === fileName)?.id} onDocumentSelect={sample => setFileName(sample.name)} onDocumentOpen={openFile} documentOpenLabel="파일 열기"
         onCommand={command => onEvent?.(`${command.itemId}/${command.id}${command.value === undefined ? "" : `=${String(command.value)}`}`)}
         trailing={<>
           <SWViewerStatus state={fileName ? "ready" : "idle"} />