Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1015,3 +1015,5 @@
 {"step": 20300, "tokens": 10643046400, "loss": 2.7324808120727537, "tokens_per_second": 979214.5308953221, "lr": 0.0015, "gradient_norm": 0.1723640114068985, "benchmark": false}
 {"step": 20320, "tokens": 10653532160, "loss": 2.7113363265991213, "tokens_per_second": 970684.5656375552, "lr": 0.0015, "gradient_norm": 0.13509832322597504, "benchmark": false}
 {"step": 20340, "tokens": 10664017920, "loss": 2.761567497253418, "tokens_per_second": 982388.4414941983, "lr": 0.0015, "gradient_norm": 0.13982176780700684, "benchmark": false}
+{"step": 20360, "tokens": 10674503680, "loss": 2.7360662460327148, "tokens_per_second": 977945.0388315676, "lr": 0.0015, "gradient_norm": 0.15452997386455536, "benchmark": false}
+{"step": 20380, "tokens": 10684989440, "loss": 2.7244327545166014, "tokens_per_second": 982084.2929775625, "lr": 0.0015, "gradient_norm": 0.14956440031528473, "benchmark": false}