Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -308,3 +308,5 @@
 {"step": 6160, "tokens": 3229614080, "loss": 2.9123771667480467, "tokens_per_second": 970947.1832531, "lr": 0.0015, "gradient_norm": 0.06923744082450867, "benchmark": false}
 {"step": 6180, "tokens": 3240099840, "loss": 2.897180366516113, "tokens_per_second": 960862.7870472525, "lr": 0.0015, "gradient_norm": 0.0649130567908287, "benchmark": false}
 {"step": 6200, "tokens": 3250585600, "loss": 2.9069116592407225, "tokens_per_second": 979698.8804656132, "lr": 0.0015, "gradient_norm": 0.07176172733306885, "benchmark": false}
+{"step": 6220, "tokens": 3261071360, "loss": 2.890264892578125, "tokens_per_second": 976501.0050195361, "lr": 0.0015, "gradient_norm": 0.07033491134643555, "benchmark": false}
+{"step": 6240, "tokens": 3271557120, "loss": 2.8849693298339845, "tokens_per_second": 978957.7607004017, "lr": 0.0015, "gradient_norm": 0.07758528739213943, "benchmark": false}