Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -611,3 +611,5 @@
 {"step": 12220, "tokens": 6406799360, "loss": 2.7986448287963865, "tokens_per_second": 970902.9798390117, "lr": 0.0015, "gradient_norm": 0.10090534389019012, "benchmark": false}
 {"step": 12240, "tokens": 6417285120, "loss": 2.814933204650879, "tokens_per_second": 972558.1365765134, "lr": 0.0015, "gradient_norm": 0.11073237657546997, "benchmark": false}
 {"step": 12260, "tokens": 6427770880, "loss": 2.788890838623047, "tokens_per_second": 974638.7197978635, "lr": 0.0015, "gradient_norm": 0.10536236315965652, "benchmark": false}
+{"step": 12280, "tokens": 6438256640, "loss": 2.823429489135742, "tokens_per_second": 973988.6357724799, "lr": 0.0015, "gradient_norm": 0.11653498560190201, "benchmark": false}
+{"step": 12300, "tokens": 6448742400, "loss": 2.819413757324219, "tokens_per_second": 929390.072885049, "lr": 0.0015, "gradient_norm": 0.10442902147769928, "benchmark": false}