Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -792,3 +792,5 @@
 {"step": 15840, "tokens": 8304721920, "loss": 2.793455696105957, "tokens_per_second": 985509.9259761899, "lr": 0.0015, "gradient_norm": 0.13698719441890717, "benchmark": false}
 {"step": 15860, "tokens": 8315207680, "loss": 2.7685171127319337, "tokens_per_second": 984942.6903972635, "lr": 0.0015, "gradient_norm": 0.12572473287582397, "benchmark": false}
 {"step": 15880, "tokens": 8325693440, "loss": 2.799310874938965, "tokens_per_second": 981443.0795205814, "lr": 0.0015, "gradient_norm": 0.1338423192501068, "benchmark": false}
+{"step": 15900, "tokens": 8336179200, "loss": 2.739674758911133, "tokens_per_second": 986746.5066202157, "lr": 0.0015, "gradient_norm": 0.14922641217708588, "benchmark": false}
+{"step": 15920, "tokens": 8346664960, "loss": 2.741182327270508, "tokens_per_second": 990415.794020369, "lr": 0.0015, "gradient_norm": 0.13643869757652283, "benchmark": false}