Upgrade async GPU analysis and workbench UX

frontend/src/components/auth/LandingPage.tsx

@@ -79,6 +79,15 @@ export function LandingPage({
     return () => document.body.classList.remove('landing-body')
   }, [])
 
+  const scrollAccessPanelIntoView = () => {
+    if (typeof accessPanelRef.current?.scrollIntoView !== 'function') return
+    const reducedMotion = window.matchMedia?.('(prefers-reduced-motion: reduce)').matches ?? false
+    accessPanelRef.current.scrollIntoView({
+      behavior: reducedMotion ? 'auto' : 'smooth',
+      block: 'center',
+    })
+  }
+
   const submitLogin = async (event: FormEvent<HTMLFormElement>) => {
     event.preventDefault()
     setPendingAction('operator')
@@ -99,9 +108,7 @@ export function LandingPage({
     setPendingAction('guest')
     setAttempted(true)
     setAuthError(null)
-    if (typeof accessPanelRef.current?.scrollIntoView === 'function') {
-      accessPanelRef.current.scrollIntoView({ behavior: 'smooth', block: 'center' })
-    }
+    scrollAccessPanelIntoView()
     try {
       const session = await loginAsGuest()
       onAuthenticated(session)
@@ -114,9 +121,7 @@ export function LandingPage({
 
   const focusLogin = () => {
     setMenuOpen(false)
-    if (typeof accessPanelRef.current?.scrollIntoView === 'function') {
-      accessPanelRef.current.scrollIntoView({ behavior: 'smooth', block: 'center' })
-    }
+    scrollAccessPanelIntoView()
     window.requestAnimationFrame(() => usernameRef.current?.focus())
   }