Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -616,3 +616,5 @@
 {"step": 12320, "tokens": 6459228160, "loss": 2.833740234375, "tokens_per_second": 772543.6753550594, "lr": 0.0015, "gradient_norm": 0.10721367597579956, "benchmark": false}
 {"step": 12340, "tokens": 6469713920, "loss": 2.789055824279785, "tokens_per_second": 966814.8212758361, "lr": 0.0015, "gradient_norm": 0.09952326118946075, "benchmark": false}
 {"step": 12360, "tokens": 6480199680, "loss": 2.7925689697265623, "tokens_per_second": 975247.0802731954, "lr": 0.0015, "gradient_norm": 0.12145429849624634, "benchmark": false}
+{"step": 12380, "tokens": 6490685440, "loss": 2.8266456604003904, "tokens_per_second": 965313.8964469638, "lr": 0.0015, "gradient_norm": 0.11399828642606735, "benchmark": false}
+{"step": 12400, "tokens": 6501171200, "loss": 2.78804988861084, "tokens_per_second": 960203.670722355, "lr": 0.0015, "gradient_norm": 0.08776278793811798, "benchmark": false}