feat(sw): viewer follow-up — SVG icon outline, shared SW popup frame, story grid, green layer buttons

- A: SWViewerIcon draws the SWHeader black outline as SVG stroke on a copy behind the icon (no CSS filter)
- B: SWViewerPanel renders the common SWPopup frame (same DOM / CSS) and adds drag, corner resize,
  collapse, bounds and modal; SWPopup gains optional titleActions / footer; title art spans any width
- C: shared Story canvas grid (--sw-story-canvas) behind the SW Header work area and dropdown room
- D: SWViewerButton tone="green" for 전체 켜기 / 전체 끄기: default kept, hover = primary (확인) hover
  token, pressed = primary face
- AI guide, verification scripts (76 checks, element regression) and evidence updated

packages/sw/ai/examples/ExampleH-ViewerMode.tsx

@@ -60,13 +60,13 @@ export function ExampleHViewerMode({ onEvent }: { onEvent?: (name: string) => vo
           <SWViewerHeaderButton iconOnly icon={icons.info} label="정보" onClick={() => setAbout(true)} />
         </>} />
 
-      <SWViewerPanel title="레이어" icon={icons.layers} open={panels.layers} onClose={() => setPanels({ ...panels, layers: false })}>
+      <SWViewerPanel title="레이어" open={panels.layers} onClose={() => setPanels({ ...panels, layers: false })}>
         <SWViewerSection surface="plain" aria-label="레이어 목록">
           <SWViewerHint>프로그램의 레이어 목록을 여기에 둡니다.</SWViewerHint>
         </SWViewerSection>
       </SWViewerPanel>
 
-      <SWViewerPanel title="옵션" icon={icons.options} open={panels.options} onClose={() => setPanels({ ...panels, options: false })} width={340} height="auto" inset={{ side: 356 }}
+      <SWViewerPanel title="옵션" open={panels.options} onClose={() => setPanels({ ...panels, options: false })} width={340} height="auto" inset={{ side: 356 }}
         footer={<SWViewerButton variant="primary" onClick={() => { onEvent?.("options:apply"); setPanels({ ...panels, options: false }) }}>적용</SWViewerButton>}>
         <SWViewerSection title="표시">
           <SWViewerField label="그리드">{id => <SWViewerSwitch id={id} checked={grid} onCheckedChange={setGrid} />}</SWViewerField>