Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -979,3 +979,5 @@
 {"step": 19580, "tokens": 10265559040, "loss": 2.769974136352539, "tokens_per_second": 987735.7227031054, "lr": 0.0015, "gradient_norm": 0.20880039036273956, "benchmark": false}
 {"step": 19600, "tokens": 10276044800, "loss": 2.716664505004883, "tokens_per_second": 971903.9757540174, "lr": 0.0015, "gradient_norm": 0.1424456536769867, "benchmark": false}
 {"step": 19620, "tokens": 10286530560, "loss": 2.784602737426758, "tokens_per_second": 976148.7554122006, "lr": 0.0015, "gradient_norm": 0.16809336841106415, "benchmark": false}
+{"step": 19640, "tokens": 10297016320, "loss": 2.7417274475097657, "tokens_per_second": 977024.9841617052, "lr": 0.0015, "gradient_norm": 0.12771359086036682, "benchmark": false}
+{"step": 19660, "tokens": 10307502080, "loss": 2.7644590377807616, "tokens_per_second": 975536.922103438, "lr": 0.0015, "gradient_norm": 0.1824571192264557, "benchmark": false}