feat(demo): typing splash + intro on every fresh visit; neutral desktop Cloud tabs

- Demo boots at '/' (first visit or a browser refresh) always start with
  the typing splash into the onboarding intro — the per-calendar-day
  gate is gone. In-session SPA navigation never replays it, and
  deep-route refreshes keep the visitor's place.
- Cloud top-level tabs return to the standard mode-switcher style on
  desktop; the orange full-width switcher stays mobile-only.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

neode-ui/src/views/Cloud.vue

@@ -6,12 +6,12 @@
       <!-- Desktop: page tabs + category tabs + search on one row -->
       <div class="app-header-desktop items-center gap-4">
         <div class="flex-shrink-0">
-          <div class="cloud-tab-switcher hidden md:inline-flex">
+          <div class="mode-switcher hidden md:inline-flex">
             <button
               v-for="tab in TABS"
               :key="tab.id"
-              class="cloud-tab-btn"
-              :class="{ 'cloud-tab-btn-active': activeTab === tab.id }"
+              class="mode-switcher-btn"
+              :class="{ 'mode-switcher-btn-active': activeTab === tab.id }"
               @click="activeTab = tab.id"
             >{{ tab.name }}</button>
           </div>
@@ -789,8 +789,9 @@ defineExpose({ loadPeers })
 </script>
 
 <style scoped>
-/* Top-level tab switcher — deliberately a DIFFERENT look from the neutral
-   category pills below it: orange-tinted container + active state. */
+/* Mobile-only top-level tab switcher — deliberately a DIFFERENT look from the
+   neutral category pills below it (orange tint). Desktop keeps the standard
+   mode-switcher styling. */
 .cloud-tab-switcher {
   gap: 2px;
   padding: 3px;

neode-ui/src/views/OnboardingIntro.vue

@@ -56,16 +56,13 @@ import { ref, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
 import AnimatedLogo from '@/components/AnimatedLogo.vue'
 import { playNavSound } from '@/composables/useNavSounds'
-import { IS_DEMO, markDemoIntroSeen } from '@/composables/useDemoIntro'
+import { IS_DEMO } from '@/composables/useDemoIntro'
 
 const router = useRouter()
 const ctaButton = ref<HTMLButtonElement | null>(null)
 const isDemo = IS_DEMO
 
 onMounted(() => {
-  // Demo: once the visitor has seen the intro today, don't auto-replay it again
-  // until tomorrow (they can still use "Replay Intro" on the login screen).
-  if (IS_DEMO) markDemoIntroSeen()
   // Auto-focus after entry animation completes (1.4s animation delay + 0.6s duration)
   setTimeout(() => {
     ctaButton.value?.focus({ preventScroll: true })

neode-ui/src/views/RootRedirect.vue

@@ -16,20 +16,20 @@
 import { ref, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
 import { isOnboardingComplete } from '@/composables/useOnboarding'
-import { IS_DEMO, demoIntroSeenToday } from '@/composables/useDemoIntro'
+import { IS_DEMO } from '@/composables/useDemoIntro'
 import BootScreen from '@/components/BootScreen.vue'
 
 const router = useRouter()
 const showBootScreen = ref(false)
 
 /**
- * Public demo: replay the intro on every visit, but at most once per calendar
- * day per browser. If already seen today → straight to login; otherwise → intro.
+ * Public demo: every fresh boot of the app (first visit OR browser refresh at
+ * the root) replays the intro for the full effect. In-session SPA navigation
+ * never re-triggers it — this only runs when the app boots at '/'.
  */
 function demoRoute() {
-  const dest = demoIntroSeenToday() ? '/login' : '/onboarding/intro'
-  log('demoRoute', { dest })
-  router.replace(dest).catch(() => {})
+  log('demoRoute', { dest: '/onboarding/intro' })
+  router.replace('/onboarding/intro').catch(() => {})
 }
 
 function log(msg: string, data?: unknown) {