Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -942,3 +942,5 @@
 {"step": 18840, "tokens": 9877585920, "loss": 2.7555524826049806, "tokens_per_second": 969109.3055810479, "lr": 0.0015, "gradient_norm": 0.1490205079317093, "benchmark": false}
 {"step": 18860, "tokens": 9888071680, "loss": 2.72528076171875, "tokens_per_second": 974191.9631154499, "lr": 0.0015, "gradient_norm": 0.20771285891532898, "benchmark": false}
 {"step": 18880, "tokens": 9898557440, "loss": 2.7407989501953125, "tokens_per_second": 973234.1554190256, "lr": 0.0015, "gradient_norm": 0.1277577430009842, "benchmark": false}
+{"step": 18900, "tokens": 9909043200, "loss": 2.728755569458008, "tokens_per_second": 971406.7877257998, "lr": 0.0015, "gradient_norm": 0.16711361706256866, "benchmark": false}
+{"step": 18920, "tokens": 9919528960, "loss": 2.7621150970458985, "tokens_per_second": 972782.1484616387, "lr": 0.0015, "gradient_norm": 0.16017542779445648, "benchmark": false}