Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1309,3 +1309,5 @@
 {"step": 26180, "tokens": 13725859840, "loss": 2.7178987503051757, "tokens_per_second": 984612.3927632245, "lr": 0.0015, "gradient_norm": 0.1800057739019394, "benchmark": false}
 {"step": 26200, "tokens": 13736345600, "loss": 2.706588935852051, "tokens_per_second": 992586.9614493968, "lr": 0.0015, "gradient_norm": 0.20683439075946808, "benchmark": false}
 {"step": 26220, "tokens": 13746831360, "loss": 2.7586248397827147, "tokens_per_second": 808955.7270861325, "lr": 0.0015, "gradient_norm": 0.1834464967250824, "benchmark": false}
+{"step": 26240, "tokens": 13757317120, "loss": 2.7532941818237306, "tokens_per_second": 985567.9996337787, "lr": 0.0015, "gradient_norm": 0.2323581427335739, "benchmark": false}
+{"step": 26260, "tokens": 13767802880, "loss": 2.7399723052978517, "tokens_per_second": 982790.6838803282, "lr": 0.0015, "gradient_norm": 0.1736874282360077, "benchmark": false}