fix(pl): keep driver/site tokens stable on rearrange.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/api/pl/transport.py

@@ -64,7 +64,6 @@ from app.services.pl_transport_stop_feedback_service import (
     ensure_transport_site_token,
     load_driver_stop_segments,
     load_site_stop_segments,
-    rotate_transport_site_token,
 )
 from app.services.pl_inventory_link_read import build_transport_inventory_link_read
 from app.services.pl_io_order_service import (
@@ -882,9 +881,9 @@ def arrange_transport(
     needs_site_link = plan_requires_site_link(db, tenant_no=tenant_no, plan=plan)
 
     if is_rearrange:
-        _rotate_driver_access_token(transport)
+        _ensure_driver_access_token(transport)
         if needs_site_link and plan_has_load_stop(db, tenant_no, plan.id):
-            rotate_transport_site_token(transport)
+            ensure_transport_site_token(transport)
         elif not needs_site_link:
             transport.site_access_token = None
             if plan.plan_type in ("inbound", "outbound"):