feat: cinematic outro that mirrors the intro crane

On arrival the camera cranes back toward the sun on a long lens, letterbox
bars close in on every tier and a closing credit of real identity facts
fades into the upper bar. Leaving the destination reverses it.

src/components/AppShell.vue

@@ -246,6 +246,7 @@ onUnmounted(() => removePageListeners());
     :policy="motion.policy.value"
     :quality="actualQuality"
     :scene-description="content.sceneDescription"
+    :credit="`${content.identity.name} · ${content.identity.role} · ${content.identity.location.city}, ${content.identity.location.country}`"
     :sample-frame="sampleSceneFrame"
     @state-change="updateSceneState"
   />

src/components/SceneCanvas.vue

@@ -15,6 +15,8 @@ const props = defineProps<{
   policy: MotionPolicy;
   quality: QualityTier;
   sceneDescription: string;
+  /** Closing credit for the destination letterbox: real identity facts only. */
+  credit?: string;
   sampleFrame?: (start: number, end: number) => unknown;
 }>();
 
@@ -55,6 +57,7 @@ if (posterFailed.value) recordTestFaultEvent('poster-failure');
     :data-static-fallback="!showCanvas"
     :data-poster-failed="posterFailed"
     :data-arrived="journey.arrived"
+    :data-credit="credit"
   >
     <picture v-if="!posterFailed">
       <source media="(max-width: 767px)" :srcset="mobilePosterUrl">