fix(intro): audible entrance oomph, splash off deep routes, finale on intro shortcuts — with e2e cinematic suite

Three first-visit-experience bugs, all caught by the new e2e suite
(e2e/intro-experience.spec.ts — 5 tests against the demo stack on real
Chrome, instrumenting HTMLMediaElement/WebAudio/MutationObserver since
headless can't hear or see the cinematic):

- playDashboardLoadOomph was always silent: the login→dashboard route
  change closes the AudioContext (stopAllAudio), and the oomph only
  fetched the dead context. It now recreates one, riding the login
  click's sticky user activation.
- A direct /login load in the demo hijacked into the splash: App.vue
  read route.path before the router resolved the initial navigation, so
  every deep-route boot looked like a root boot. The splash decision now
  reads window.location.pathname.
- Replayed intros ran mute (enableCinematicSounds override) and the
  intro's shortcut exits skipped the dashboard finale (flag now armed on
  both demo and login exits).

Verified: 5/5 e2e, 673/673 unit, vue-tsc clean.

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

neode-ui/src/App.vue

@@ -400,14 +400,19 @@ onMounted(async () => {
   // onboarded node).
   let replayRequested = sessionStorage.getItem('archipelago_replay_intro') === '1'
   if (replayRequested) sessionStorage.removeItem('archipelago_replay_intro')
+  // The route object still holds the router's START_LOCATION ('/') here —
+  // the initial navigation resolves asynchronously — so a deep-route load
+  // (e.g. a direct /login visit) would masquerade as a root boot. The URL
+  // bar is the only truthful source this early.
+  const bootPath = window.location.pathname
   // Public demo: every fresh boot at the root (first visit or a browser
   // refresh) starts with the typing splash for the full effect. In-session SPA
   // navigation never remounts App, and deep-route refreshes keep their place.
   const { IS_DEMO } = await import('@/composables/useDemoIntro')
-  if (IS_DEMO && route.path === '/') replayRequested = true
+  if (IS_DEMO && bootPath === '/') replayRequested = true
   let onboardingComplete: boolean | null = localStorage.getItem('neode_onboarding_complete') === '1' ? true : null
   const splashCandidate = !seenIntro
-    && (fromBoot || (route.path === '/' && import.meta.env.VITE_DEV_MODE !== 'boot'))
+    && (fromBoot || (bootPath === '/' && import.meta.env.VITE_DEV_MODE !== 'boot'))
 
   if (splashCandidate && onboardingComplete !== true) {
     try {
@@ -427,22 +432,29 @@ onMounted(async () => {
 
   if (shouldShowIntroSplash({
     seenIntro,
-    routePath: route.path,
+    routePath: bootPath,
     fromBoot,
     devMode: import.meta.env.VITE_DEV_MODE,
     onboardingComplete,
     replayRequested,
   })) {
+    // The intro is definitely playing — unmute the whole cinematic (speech,
+    // synthwave, pops) even on browsers whose localStorage says onboarding is
+    // complete; the sound gate otherwise silences replays.
+    const { enableCinematicSounds } = await import('@/composables/useLoginSounds')
+    enableCinematicSounds()
     // Kick off the intro video download NOW: the splash's <video> element only
     // mounts ~20s in (after the typing sequence), and on a cold cache the file
-    // would otherwise start fetching mid-sequence and stutter.
+    // would otherwise start fetching mid-sequence and stutter. A detached
+    // <video preload=auto> is used because Chromium does not support
+    // <link rel=preload as=video> — the media cache then serves the splash's
+    // element, which uses the identical URL.
     try {
-      const link = document.createElement('link')
-      link.rel = 'preload'
-      link.as = 'video'
-      link.type = 'video/mp4'
-      link.href = '/assets/video/video-intro.mp4?v=8'
-      document.head.appendChild(link)
+      const warm = document.createElement('video')
+      warm.muted = true
+      warm.preload = 'auto'
+      warm.src = '/assets/video/video-intro.mp4?v=8'
+      ;(window as unknown as { __introVideoWarm?: HTMLVideoElement }).__introVideoWarm = warm
     } catch { /* ignore */ }
     // Coming from boot screen — show the full splash intro (Enter to Exit → typing → logo)
     showSplash.value = true
@@ -516,6 +528,17 @@ async function handleSplashComplete() {
     return
   }
 
+  // Demo: the cinematic always continues into the onboarding intro page —
+  // the mock backend reports "onboarded", which would otherwise route
+  // straight to /login and cut the sequence short.
+  {
+    const { IS_DEMO } = await import('@/composables/useDemoIntro')
+    if (IS_DEMO) {
+      router.push('/onboarding/intro').catch(() => {})
+      return
+    }
+  }
+
   try {
     const { checkOnboardingStatus } = await import('@/composables/useOnboarding')
     const seenOnboarding = await checkOnboardingStatus()

neode-ui/src/composables/useLoginSounds.ts

@@ -8,14 +8,27 @@
  * exempt and continue to play regardless.
  */
 
+/** One-way, per-page-load override: when App.vue decides to run the intro
+ *  splash (demo fresh boot, prod first install, Replay Intro), the WHOLE
+ *  cinematic — speech, synthwave, pops — must be audible even though
+ *  localStorage already says onboarding is complete. Without this the
+ *  replayed intro runs silent (lost "Welcome Noderunner" + song). */
+let cinematicMode = false
+export function enableCinematicSounds() {
+  cinematicMode = true
+}
+
 /** True when the node has not yet completed onboarding — i.e. we're
- *  still in the first-install cinematic. Reads the localStorage cache
- *  set by useOnboarding (which is re-seeded from the backend on each
- *  successful check), so this stays correct after a browser clear
- *  once the onboarding-complete probe runs. Sound calls that fire
- *  before that probe completes will fall through silent on an already-
- *  onboarded node — which is exactly what we want. */
+ *  still in the first-install cinematic — or when the intro is being
+ *  deliberately replayed this page load (see enableCinematicSounds).
+ *  Reads the localStorage cache set by useOnboarding (which is
+ *  re-seeded from the backend on each successful check), so this stays
+ *  correct after a browser clear once the onboarding-complete probe
+ *  runs. Sound calls that fire before that probe completes will fall
+ *  through silent on an already-onboarded node — which is exactly what
+ *  we want: ordinary re-logins stay quiet. */
 function isFirstInstallPhase(): boolean {
+  if (cinematicMode) return true
   try {
     return localStorage.getItem('neode_onboarding_complete') !== '1'
   } catch {
@@ -260,7 +273,10 @@ export function playKeyboardTypingSound() {
  */
 export function playDashboardLoadOomph(force = false) {
   if (!force && !isFirstInstallPhase()) return
-  const ctx = getContext()
+  // The login→dashboard route change runs stopAllAudio(), which CLOSES the
+  // AudioContext — so the context must be recreated here, not just fetched.
+  // The login click's sticky user activation lets the fresh context run.
+  const ctx = ensureContext()
   if (!ctx) return
 
   try {

neode-ui/src/views/OnboardingIntro.vue

@@ -69,12 +69,22 @@ onMounted(() => {
   }, 2100)
 })
 
+/** Any exit from the intro INTO login is the end of the cinematic — hand the
+ *  login the one-shot finale flag so the dashboard plays its full first-entry
+ *  reveal (zoom + oomph). OnboardingDone sets the same flag at the end of the
+ *  full wizard; these are the shortcut exits that used to skip it (which is
+ *  why the demo never got the big entrance). */
+function armOnboardingFinale() {
+  try { sessionStorage.setItem('archy_onboarding_finale', '1') } catch { /* ignore */ }
+}
+
 function goToOptions() {
   playNavSound('action')
   // Demo: skip the onboarding wizard (seed/identity setup) entirely — go straight
   // to login, which is prefilled with the demo password.
   if (isDemo) {
     localStorage.setItem('neode_onboarding_complete', '1')
+    armOnboardingFinale()
     router.push('/login').catch(() => {})
     return
   }
@@ -89,6 +99,7 @@ function goToRestore() {
 function goToLogin() {
   playNavSound('action')
   localStorage.setItem('neode_onboarding_complete', '1')
+  armOnboardingFinale()
   router.push('/login').catch(() => {})
 }
 </script>