Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -770,3 +770,5 @@
 {"step": 15400, "tokens": 8074035200, "loss": 2.770212745666504, "tokens_per_second": 793080.9519841595, "lr": 0.0015, "gradient_norm": 0.12192878127098083, "benchmark": false}
 {"step": 15420, "tokens": 8084520960, "loss": 2.782291221618652, "tokens_per_second": 990637.1932859971, "lr": 0.0015, "gradient_norm": 0.12279947847127914, "benchmark": false}
 {"step": 15440, "tokens": 8095006720, "loss": 2.779428482055664, "tokens_per_second": 985431.1509096528, "lr": 0.0015, "gradient_norm": 0.11921844631433487, "benchmark": false}
+{"step": 15460, "tokens": 8105492480, "loss": 2.789088821411133, "tokens_per_second": 984151.1761542251, "lr": 0.0015, "gradient_norm": 0.12286203354597092, "benchmark": false}
+{"step": 15480, "tokens": 8115978240, "loss": 2.774624824523926, "tokens_per_second": 987296.5932243799, "lr": 0.0015, "gradient_norm": 0.12382978200912476, "benchmark": false}