update slot resume pointers for step 1310

slots/12/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:12", "checkpoint": "slots/12/checkpoint-436", "step": 436, "updated_at": 1776678343}
+{"worker_id": "slot:12", "checkpoint": "slots/12/checkpoint-1310", "step": 1310, "updated_at": 1776681747}