Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -218,3 +218,4 @@
 {"step": 4360, "tokens": 2285895680, "loss": 2.9763671875, "tokens_per_second": 982640.3587817473, "lr": 0.0015, "gradient_norm": 0.10369141399860382, "benchmark": false}
 {"step": 4380, "tokens": 2296381440, "loss": 2.933808135986328, "tokens_per_second": 841728.0289634251, "lr": 0.0015, "gradient_norm": 0.0988178700208664, "benchmark": false}
 {"step": 4400, "tokens": 2306867200, "loss": 2.974225616455078, "tokens_per_second": 997499.7358452206, "lr": 0.0015, "gradient_norm": 0.09417622536420822, "benchmark": false}
+{"step": 4420, "tokens": 2317352960, "loss": 2.975873565673828, "tokens_per_second": 982659.5596324302, "lr": 0.0015, "gradient_norm": 0.10142190754413605, "benchmark": false}