fix(storybook): use SWSlider in the SW Popup story

packages/sw/tests/integrated-popup.checks.mjs

@@ -21,10 +21,12 @@ export async function popupChecks({ page, goto, check, log, rect, out, report })
   // 2026-10-20: the unit select is SWSelect (the Viewer 축척 지정 select), no longer the HM UI Select.
   await settings.locator('[data-sw-select="unit"]').selectOption('cm')
   check('popup content: SWSelect (unit) works inside', (await log()).includes('unit=cm') && await settings.getByLabel('단위').inputValue() === 'cm')
-  await settings.locator('[data-ui-slider] [role="slider"]').focus()
+  // 2026-10-20: the popup gauge is SWSlider (native range; keyboard steps commit through onValueCommit).
+  await settings.locator('[data-popup-slider]').focus()
   await page.keyboard.press('ArrowRight')
   await page.waitForTimeout(100)
-  check('popup content: HM UI Slider works inside', /opacity=70/.test(await log()), await log())
+  check('popup content: SWSlider works inside', /opacity=70/.test(await log()) && await settings.locator('[data-popup-slider]').evaluate(e => e.classList.contains('hm-sw-slider') && e.dataset.appearance === 'panel' && e.value === '70'), await log())
+  check('popup content: no HM UI Slider left inside the popups', await page.locator('[data-popups] [data-slot="slider"]').count() === 0)
   await settings.locator('[data-ui-apply]').click()
   check('popup content: HM UI Button works inside', (await log()).includes('apply'))
   // 2026-10-20: popup layer / color are the property window pickers (SWPopupPropertyRow); SWHeader field dropdowns are