Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -160,3 +160,5 @@
 {"step": 3200, "tokens": 1677721600, "loss": 3.046498107910156, "tokens_per_second": 973834.5066184303, "lr": 0.0015, "gradient_norm": 0.15410611033439636, "benchmark": false}
 {"step": 3220, "tokens": 1688207360, "loss": 3.0478410720825195, "tokens_per_second": 963905.1910754426, "lr": 0.0015, "gradient_norm": 0.14934739470481873, "benchmark": false}
 {"step": 3240, "tokens": 1698693120, "loss": 3.037614440917969, "tokens_per_second": 967045.3812131445, "lr": 0.0015, "gradient_norm": 0.1508370041847229, "benchmark": false}
+{"step": 3260, "tokens": 1709178880, "loss": 3.0596263885498045, "tokens_per_second": 970383.7742291628, "lr": 0.0015, "gradient_norm": 0.148663729429245, "benchmark": false}
+{"step": 3280, "tokens": 1719664640, "loss": 3.0442033767700196, "tokens_per_second": 965969.0147663327, "lr": 0.0015, "gradient_norm": 0.17235177755355835, "benchmark": false}