Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1078,3 +1078,5 @@
 {"step": 21560, "tokens": 11303649280, "loss": 2.75574951171875, "tokens_per_second": 988670.3337918094, "lr": 0.0015, "gradient_norm": 0.1459985226392746, "benchmark": false}
 {"step": 21580, "tokens": 11314135040, "loss": 2.728601837158203, "tokens_per_second": 814876.4121760112, "lr": 0.0015, "gradient_norm": 0.16379660367965698, "benchmark": false}
 {"step": 21600, "tokens": 11324620800, "loss": 2.744864654541016, "tokens_per_second": 982885.1191783481, "lr": 0.0015, "gradient_norm": 0.17417514324188232, "benchmark": false}
+{"step": 21620, "tokens": 11335106560, "loss": 2.7458520889282227, "tokens_per_second": 978655.0484006297, "lr": 0.0015, "gradient_norm": 0.14431726932525635, "benchmark": false}
+{"step": 21640, "tokens": 11345592320, "loss": 2.7496265411376952, "tokens_per_second": 980379.3584159111, "lr": 0.0015, "gradient_norm": 0.16225294768810272, "benchmark": false}