Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -762,3 +762,5 @@
 {"step": 15240, "tokens": 7990149120, "loss": 2.748489570617676, "tokens_per_second": 980651.3313555524, "lr": 0.0015, "gradient_norm": 0.11789301037788391, "benchmark": false}
 {"step": 15260, "tokens": 8000634880, "loss": 2.7987091064453127, "tokens_per_second": 980199.5878640658, "lr": 0.0015, "gradient_norm": 0.12273319065570831, "benchmark": false}
 {"step": 15280, "tokens": 8011120640, "loss": 2.7595916748046876, "tokens_per_second": 978473.4606914566, "lr": 0.0015, "gradient_norm": 0.10250099748373032, "benchmark": false}
+{"step": 15300, "tokens": 8021606400, "loss": 2.7711753845214844, "tokens_per_second": 982610.2796507904, "lr": 0.0015, "gradient_norm": 0.12107187509536743, "benchmark": false}
+{"step": 15320, "tokens": 8032092160, "loss": 2.7694541931152346, "tokens_per_second": 985252.0515802435, "lr": 0.0015, "gradient_norm": 0.1299021989107132, "benchmark": false}