Include junction data when deriving spline corridor colliders

src/runtime-three/runtime-scene-build.ts

@@ -2078,6 +2078,7 @@ export function buildRuntimeSceneFromDocument(
     });
   const splineCorridorColliders = deriveSplineCorridorBoxColliders({
     paths,
+    junctions: splineCorridorJunctions,
     terrains: enabledTerrains,
     clipIntervalsByPath: splineCorridorClipIntervalsByPath
   });