bulk meta

meta/worker=1/20260829T215608_00005.json

@@ -0,0 +1 @@
+{"worker": "1", "run": "20260829T215608", "seq": 5, "shard": "shards/run=20260829T215608/worker=1/00005.parquet", "rows": 2986, "games": 48, "score_mean": 4287.625, "score_max": 31556, "ts": "2026-08-29T22:56:48.648609+00:00"}