Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -760,3 +760,5 @@
 {"step": 15200, "tokens": 7969177600, "loss": 2.743648910522461, "tokens_per_second": 949634.5828433512, "lr": 0.0015, "gradient_norm": 0.10898782312870026, "benchmark": false}
 {"step": 15220, "tokens": 7979663360, "loss": 2.779790687561035, "tokens_per_second": 914020.3761350015, "lr": 0.0015, "gradient_norm": 0.14382652938365936, "benchmark": false}
 {"step": 15240, "tokens": 7990149120, "loss": 2.748489570617676, "tokens_per_second": 980651.3313555524, "lr": 0.0015, "gradient_norm": 0.11789301037788391, "benchmark": false}
+{"step": 15260, "tokens": 8000634880, "loss": 2.7987091064453127, "tokens_per_second": 980199.5878640658, "lr": 0.0015, "gradient_norm": 0.12273319065570831, "benchmark": false}
+{"step": 15280, "tokens": 8011120640, "loss": 2.7595916748046876, "tokens_per_second": 978473.4606914566, "lr": 0.0015, "gradient_norm": 0.10250099748373032, "benchmark": false}