Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -191,3 +191,5 @@
 {"step": 3820, "tokens": 2002780160, "loss": 3.0164859771728514, "tokens_per_second": 977973.746760453, "lr": 0.0015, "gradient_norm": 0.1039506271481514, "benchmark": false}
 {"step": 3840, "tokens": 2013265920, "loss": 3.0068218231201174, "tokens_per_second": 980913.81235883, "lr": 0.0015, "gradient_norm": 0.12089887261390686, "benchmark": false}
 {"step": 3860, "tokens": 2023751680, "loss": 2.967877006530762, "tokens_per_second": 977967.674142663, "lr": 0.0015, "gradient_norm": 0.11864820122718811, "benchmark": false}
+{"step": 3880, "tokens": 2034237440, "loss": 3.0211723327636717, "tokens_per_second": 974406.2258280913, "lr": 0.0015, "gradient_norm": 0.12529462575912476, "benchmark": false}
+{"step": 3900, "tokens": 2044723200, "loss": 2.9944433212280273, "tokens_per_second": 979193.8035194282, "lr": 0.0015, "gradient_norm": 0.10861857980489731, "benchmark": false}