Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -422,3 +422,5 @@
 {"step": 8440, "tokens": 4424990720, "loss": 2.8189924240112303, "tokens_per_second": 983180.1213848125, "lr": 0.0015, "gradient_norm": 0.07665544003248215, "benchmark": false}
 {"step": 8460, "tokens": 4435476480, "loss": 2.8676340103149416, "tokens_per_second": 930712.393301377, "lr": 0.0015, "gradient_norm": 0.06544634699821472, "benchmark": false}
 {"step": 8480, "tokens": 4445962240, "loss": 2.845271682739258, "tokens_per_second": 996521.2859972045, "lr": 0.0015, "gradient_norm": 0.0774340033531189, "benchmark": false}
+{"step": 8500, "tokens": 4456448000, "loss": 2.8363792419433596, "tokens_per_second": 987704.7458042043, "lr": 0.0015, "gradient_norm": 0.07551994174718857, "benchmark": false}
+{"step": 8520, "tokens": 4466933760, "loss": 2.87451286315918, "tokens_per_second": 831144.4913827988, "lr": 0.0015, "gradient_norm": 0.07500536739826202, "benchmark": false}