Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -631,3 +631,5 @@
 {"step": 12620, "tokens": 6616514560, "loss": 2.779056167602539, "tokens_per_second": 974246.924298135, "lr": 0.0015, "gradient_norm": 0.10292800515890121, "benchmark": false}
 {"step": 12640, "tokens": 6627000320, "loss": 2.760360336303711, "tokens_per_second": 971397.7296126114, "lr": 0.0015, "gradient_norm": 0.1069885790348053, "benchmark": false}
 {"step": 12660, "tokens": 6637486080, "loss": 2.801474952697754, "tokens_per_second": 978504.4704739889, "lr": 0.0015, "gradient_norm": 0.12490136176347733, "benchmark": false}
+{"step": 12680, "tokens": 6647971840, "loss": 2.798496055603027, "tokens_per_second": 980442.1913900679, "lr": 0.0015, "gradient_norm": 0.11460032314062119, "benchmark": false}
+{"step": 12700, "tokens": 6658457600, "loss": 2.8015419006347657, "tokens_per_second": 973220.7832424595, "lr": 0.0015, "gradient_norm": 0.11687641590833664, "benchmark": false}