feat: introduce GeofencingEnforcement strategy pattern for zone-type-specific routing decisions

Replace the 220-line StreetEdge geofencing if-chain with a three-layer
architecture using the Strategy pattern:

- Layer 0: Zone state tracking (StateEditor.updateGeofencingZones, from commit 3)
- Layer 1: Network commitment for generic arriveBy states
- Layer 2: GeofencingEnforcement strategy per zone type

New enforcement implementations:
- RestrictedZoneEnforcement: no-drop-off and no-traversal zones (fork, block, drop)
- BusinessAreaEnforcement: inverted logic (exit = restrict)
- DeferredForkHandler: backState zone exit detection for deferred renting branches

The traversal skeleton iterates paired boundary extensions on fromv,
delegates to the appropriate enforcement via GeofencingEnforcement.forZone(),
and handles network commitment for generic states separately.

Delete old per-edge geofencing system: RentalRestrictionExtension,
GeofencingZoneExtension, NoRestriction, CompositeRentalRestrictionExtension,
BusinessAreaBorder, and all associated Vertex/State/StreetEdge methods.

Author: testower

application/src/main/java/org/opentripplanner/routing/impl/GraphPathFinder.java

@@ -13,7 +13,7 @@
 import org.opentripplanner.routing.error.PathNotFoundException;
 import org.opentripplanner.routing.linking.LinkingContext;
 import org.opentripplanner.service.vehiclerental.model.GeofencingZone;
-import org.opentripplanner.service.vehiclerental.street.GeofencingZoneIndex;
+import org.opentripplanner.service.vehiclerental.street.geofencing.GeofencingZoneIndex;
 import org.opentripplanner.street.model.StreetConstants;
 import org.opentripplanner.street.model.edge.ExtensionRequestContext;
 import org.opentripplanner.street.model.path.StreetPath;

application/src/main/java/org/opentripplanner/updater/vehicle_rental/VehicleRentalUpdater.java

@@ -16,16 +16,15 @@
 import org.opentripplanner.service.vehiclerental.VehicleRentalRepository;
 import org.opentripplanner.service.vehiclerental.model.GeofencingZone;
 import org.opentripplanner.service.vehiclerental.model.VehicleRentalPlace;
-import org.opentripplanner.service.vehiclerental.street.GeofencingZoneApplier;
-import org.opentripplanner.service.vehiclerental.street.GeofencingZoneIndex;
+import org.opentripplanner.service.vehiclerental.street.geofencing.GeofencingZoneApplier;
+import org.opentripplanner.service.vehiclerental.street.geofencing.GeofencingZoneIndex;
 import org.opentripplanner.service.vehiclerental.street.StreetVehicleRentalLink;
 import org.opentripplanner.service.vehiclerental.street.VehicleRentalEdge;
 import org.opentripplanner.service.vehiclerental.street.VehicleRentalPlaceVertex;
 import org.opentripplanner.street.Scope;
 import org.opentripplanner.street.linking.DisposableEdgeCollection;
 import org.opentripplanner.street.linking.LinkingDirection;
 import org.opentripplanner.street.linking.VertexLinker;
-import org.opentripplanner.street.model.edge.StreetEdge;
 import org.opentripplanner.street.model.vertex.Vertex;
 import org.opentripplanner.street.search.TraverseMode;
 import org.opentripplanner.street.search.TraverseModeSet;
@@ -56,7 +55,6 @@ public class VehicleRentalUpdater extends PollingGraphUpdater {
   private final VehicleRentalDataSource source;
   private final String nameForLogging;
 
-  private Map<StreetEdge, String> latestBusinessAreaEdges = Map.of();
   private Set<Vertex> latestBoundaryVertices = Set.of();
   private GeofencingZoneIndex latestZoneIndex;
   private Set<GeofencingZone> latestAppliedGeofencingZones = Set.of();
@@ -224,7 +222,6 @@ public void run(RealTimeUpdateContext context) {
         LOG.info("Computing geofencing zones for {}", nameForLogging);
         var start = System.currentTimeMillis();
 
-        latestBusinessAreaEdges.forEach(StreetEdge::removeBusinessAreaBorderNetwork);
         latestBoundaryVertices.forEach(vertex ->
           vertex.removeGeofencingBoundariesForZones(latestAppliedGeofencingZones)
         );
@@ -235,7 +232,6 @@ public void run(RealTimeUpdateContext context) {
         // included so split vertices on those edges get boundary extensions.
         var applier = new GeofencingZoneApplier(env -> graph.findEdges(env, Scope.REQUEST), true);
         var result = applier.applyGeofencingZones(geofencingZones);
-        latestBusinessAreaEdges = result.businessAreaEdges();
         latestBoundaryVertices = result.boundaryVertices();
         latestZoneIndex = result.zoneIndex();
         latestAppliedGeofencingZones = geofencingZones;
@@ -246,10 +242,9 @@ public void run(RealTimeUpdateContext context) {
         var end = System.currentTimeMillis();
         var millis = Duration.ofMillis(end - start);
         LOG.info(
-          "Geofencing zones computation took {}. {} boundary vertices, {} business area edges. For {}",
+          "Geofencing zones computation took {}. {} boundary vertices. For {}",
           DurationUtils.durationToStr(millis),
           latestBoundaryVertices.size(),
-          latestBusinessAreaEdges.size(),
           nameForLogging
         );
       }