Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -410,3 +410,5 @@
 {"step": 8200, "tokens": 4299161600, "loss": 2.8504922866821287, "tokens_per_second": 987199.328436592, "lr": 0.0015, "gradient_norm": 0.07969453930854797, "benchmark": false}
 {"step": 8220, "tokens": 4309647360, "loss": 2.8941909790039064, "tokens_per_second": 984853.9615494516, "lr": 0.0015, "gradient_norm": 0.07546231150627136, "benchmark": false}
 {"step": 8240, "tokens": 4320133120, "loss": 2.87431640625, "tokens_per_second": 984347.6630434011, "lr": 0.0015, "gradient_norm": 0.06595153361558914, "benchmark": false}
+{"step": 8260, "tokens": 4330618880, "loss": 2.901999855041504, "tokens_per_second": 945021.4387785712, "lr": 0.0015, "gradient_norm": 0.07873459160327911, "benchmark": false}
+{"step": 8280, "tokens": 4341104640, "loss": 2.8443761825561524, "tokens_per_second": 978898.542667765, "lr": 0.0015, "gradient_norm": 0.0756574273109436, "benchmark": false}