Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1409,3 +1409,5 @@
 {"step": 28180, "tokens": 14774435840, "loss": 2.7179227828979493, "tokens_per_second": 975377.3493138999, "lr": 0.0015, "gradient_norm": 0.17361409962177277, "benchmark": false}
 {"step": 28200, "tokens": 14784921600, "loss": 2.715019416809082, "tokens_per_second": 975951.8261859085, "lr": 0.0015, "gradient_norm": 0.19439297914505005, "benchmark": false}
 {"step": 28220, "tokens": 14795407360, "loss": 2.7537019729614256, "tokens_per_second": 966435.4284252971, "lr": 0.0015, "gradient_norm": 0.20145413279533386, "benchmark": false}
+{"step": 28240, "tokens": 14805893120, "loss": 2.6983736038208006, "tokens_per_second": 974435.2538451034, "lr": 0.0015, "gradient_norm": 0.16358453035354614, "benchmark": false}
+{"step": 28260, "tokens": 14816378880, "loss": 2.7062435150146484, "tokens_per_second": 978858.8450378526, "lr": 0.0015, "gradient_norm": 0.17861990630626678, "benchmark": false}