update slot resume pointers for step 4818

slots/12/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:12", "checkpoint": "slots/12/checkpoint-4488", "step": 4488, "updated_at": 1776734691}
+{"worker_id": "slot:12", "checkpoint": "slots/12/checkpoint-4818", "step": 4818, "updated_at": 1776736048}