feat: night freight container yard works through the additional work chapter

src/scene/world/environment.ts

@@ -41,6 +41,7 @@ import { createMilestones } from '@/scene/world/milestones';
 import { billboardNear, createBillboard, textureSize } from '@/scene/world/billboard';
 import { BILLBOARD_NUDGE, RELAY_NUDGE } from '@/scene/world/composition';
 import { createRelayMasts } from '@/scene/world/relay-masts';
+import { createYard } from '@/scene/world/yard';
 import { isMilestoneSection, sectionLocalProgress } from '@/journey/route-log';
 import { dawnStep, type DawnStep } from '@/journey/dawn';
 import { dawnLightUniforms } from '@/scene/world/dawn-light';
@@ -207,12 +208,16 @@ export async function createProceduralSceneGeneration(
       && (globalThis.navigator as { connection?: { saveData?: boolean } } | undefined)?.connection?.saveData !== true,
     fogColor: scene.fog.color,
   });
+  // NIGHT FREIGHT: a gantry crane works the Additional work container yard.
+  // Low tier and touch: crane, stacks and plates; no floods, lamps or pulse.
+  const yard = createYard(context.resources, maintenanceTier === 'full');
   let underpassShade = 0;
   let underpassKey = '';
   let underpassAttr = false;
   scene.add(
     underpass.group,
     relay.group,
+    yard.group,
     billboard.mesh,
     maintenance.group,
     milestones.mesh,
@@ -427,6 +432,16 @@ export async function createProceduralSceneGeneration(
         musicPulse,
         deltaSeconds,
       );
+      // The deck from the previous frame (underpass updates after the sign).
+      const yardDeck = underpass.inspect();
+      yard.update(
+        snapshot.activeSectionId,
+        sectionLocalProgress(snapshot, 'additional-work'),
+        musicPulse,
+        deltaSeconds,
+        yardDeck.visible ? yardDeck.z : null,
+        camera.aspect,
+      );
       const relayNudge = relay.update(
         snapshot.activeSectionId,
         snapshot.activeSectionId === 'toolkit' ? sectionLocalProgress(snapshot, 'toolkit') : null,