feat: integrate the cinematic nightdrive scene

tests/unit/world-models.test.ts

@@ -15,6 +15,7 @@ import { createAtmosphere } from '@/scene/world/atmosphere';
 import { createPostProcessor } from '@/scene/post-processing';
 import { createCar } from '@/scene/world/car';
 import { createChaseCamera } from '@/scene/world/environment';
+import { createSign, routeLabelFor } from '@/scene/world/sign';
 
 describe('procedural world models', () => {
   it('scales geometry and atmosphere work monotonically by live quality tier', () => {
@@ -299,6 +300,61 @@ describe('procedural world models', () => {
     expect(resources.snapshot()).toEqual(allocation);
     resources.dispose();
   });
+
+  it('renders one physical roadside sign and updates its plain label once per target', () => {
+    const resources = new SceneResourceBag();
+    const sign = createSign(resources);
+    for (const name of [
+      'sign-backplate',
+      'sign-face',
+      'sign-frame',
+      'sign-post-left',
+      'sign-post-right',
+    ]) {
+      expect(sign.group.getObjectByName(name), name).toBeDefined();
+    }
+    const face = sign.group.getObjectByName('sign-face') as {
+      userData: { textureUpdateCount: number };
+      material: { opacity: number };
+    };
+    const allocation = resources.snapshot();
+
+    sign.update(null);
+    expect((sign.group as { visible: boolean }).visible).toBe(false);
+    sign.update({
+      targetId: 'infrastructure',
+      phase: 'anticipate',
+      progress: 0,
+      opacity: 0,
+    });
+    expect((sign.group as { visible: boolean }).visible).toBe(false);
+    expect(face.userData.textureUpdateCount).toBe(1);
+    expect(routeLabelFor('infrastructure')).toBe('Infrastructure');
+
+    sign.update({
+      targetId: 'infrastructure',
+      phase: 'approach',
+      progress: 0.5,
+      opacity: 0.7,
+    });
+    expect((sign.group as { visible: boolean }).visible).toBe(true);
+    expect(face.userData.textureUpdateCount).toBe(1);
+    expect(face.material.opacity).toBeCloseTo(0.7, 6);
+
+    const desktopX = (sign.group as { position: { x: number } }).position.x;
+    sign.setViewportAspect(0.6);
+    sign.update({
+      targetId: 'selected-builds',
+      phase: 'dwell',
+      progress: 1,
+      opacity: 1,
+    });
+    expect(face.userData.textureUpdateCount).toBe(2);
+    expect(routeLabelFor('selected-builds')).toBe('Selected builds');
+    expect((sign.group as { position: { x: number } }).position.x).toBeLessThan(desktopX);
+    expect(resources.snapshot()).toEqual(allocation);
+    resources.dispose();
+  });
 });
 
 function paletteSnapshot(palette: ReturnType<typeof createMutableChapterPalette>) {