Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -986,3 +986,5 @@
 {"step": 19720, "tokens": 10338959360, "loss": 2.751569938659668, "tokens_per_second": 988856.8240925538, "lr": 0.0015, "gradient_norm": 0.14205482602119446, "benchmark": false}
 {"step": 19740, "tokens": 10349445120, "loss": 2.7716190338134767, "tokens_per_second": 817926.7112511618, "lr": 0.0015, "gradient_norm": 0.1491253674030304, "benchmark": false}
 {"step": 19760, "tokens": 10359930880, "loss": 2.7228086471557615, "tokens_per_second": 996178.2929142038, "lr": 0.0015, "gradient_norm": 0.16393040120601654, "benchmark": false}
+{"step": 19780, "tokens": 10370416640, "loss": 2.7475027084350585, "tokens_per_second": 912376.6426194644, "lr": 0.0015, "gradient_norm": 0.14863534271717072, "benchmark": false}
+{"step": 19800, "tokens": 10380902400, "loss": 2.7468582153320313, "tokens_per_second": 982878.9220169957, "lr": 0.0015, "gradient_norm": 0.1454748809337616, "benchmark": false}