Integrate spline corridor junction support for terrain patching and scene building

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

@@ -67,6 +67,10 @@ import {
   type ScenePathRoadSettings,
   type ScenePathPoint
 } from "../document/paths";
+import {
+  getSplineCorridorJunctions,
+  type SplineCorridorJunction
+} from "../document/spline-corridor-junctions";
 import {
   cloneTerrain,
   createEmptyTerrainFoliageBlockerMask,
@@ -86,6 +90,7 @@ import {
   deriveSplineCorridorBoxColliders,
   type SplineCorridorBoxCollider
 } from "../spline-corridor/spline-corridor-colliders";
+import { resolveSplineCorridorJunctionClipIntervals } from "../spline-corridor/spline-corridor-junctions";
 import {
   cloneWorldSettings,
   type WorldSettings