Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -393,3 +393,5 @@
 {"step": 7860, "tokens": 4120903680, "loss": 2.8760910034179688, "tokens_per_second": 978431.0952770986, "lr": 0.0015, "gradient_norm": 0.07081884145736694, "benchmark": false}
 {"step": 7880, "tokens": 4131389440, "loss": 2.8618162155151365, "tokens_per_second": 978230.4771587944, "lr": 0.0015, "gradient_norm": 0.08222915232181549, "benchmark": false}
 {"step": 7900, "tokens": 4141875200, "loss": 2.8634958267211914, "tokens_per_second": 982325.4681529441, "lr": 0.0015, "gradient_norm": 0.07007068395614624, "benchmark": false}
+{"step": 7920, "tokens": 4152360960, "loss": 2.853188133239746, "tokens_per_second": 975227.7228349362, "lr": 0.0015, "gradient_norm": 0.07613815367221832, "benchmark": false}
+{"step": 7940, "tokens": 4162846720, "loss": 2.8642766952514647, "tokens_per_second": 973947.4194234799, "lr": 0.0015, "gradient_norm": 0.07104819267988205, "benchmark": false}