Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1192,3 +1192,5 @@
 {"step": 23840, "tokens": 12499025920, "loss": 2.7446414947509767, "tokens_per_second": 936322.7147520928, "lr": 0.0015, "gradient_norm": 0.17438428103923798, "benchmark": false}
 {"step": 23860, "tokens": 12509511680, "loss": 2.7243513107299804, "tokens_per_second": 989719.791013387, "lr": 0.0015, "gradient_norm": 0.16358651220798492, "benchmark": false}
 {"step": 23880, "tokens": 12519997440, "loss": 2.700775146484375, "tokens_per_second": 850381.8881175189, "lr": 0.0015, "gradient_norm": 0.14233604073524475, "benchmark": false}
+{"step": 23900, "tokens": 12530483200, "loss": 2.708213043212891, "tokens_per_second": 981935.8923766576, "lr": 0.0015, "gradient_norm": 0.15410612523555756, "benchmark": false}
+{"step": 23920, "tokens": 12540968960, "loss": 2.7601694107055663, "tokens_per_second": 975348.6145191451, "lr": 0.0015, "gradient_norm": 0.16925016045570374, "benchmark": false}