bulk meta

meta/worker=1/20260829T230505_00000.json

@@ -0,0 +1 @@
+{"worker": "1", "run": "20260829T230505", "seq": 0, "shard": "shards/run=20260829T230505/worker=1/00000.parquet", "rows": 3146, "games": 51, "score_mean": 3462.6470588235293, "score_max": 30409, "ts": "2026-08-29T23:15:07.543424+00:00"}