Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1086,3 +1086,5 @@
 {"step": 21720, "tokens": 11387535360, "loss": 2.7518178939819338, "tokens_per_second": 980859.979874736, "lr": 0.0015, "gradient_norm": 0.16923417150974274, "benchmark": false}
 {"step": 21740, "tokens": 11398021120, "loss": 2.73089599609375, "tokens_per_second": 990311.7282315026, "lr": 0.0015, "gradient_norm": 0.1532820463180542, "benchmark": false}
 {"step": 21760, "tokens": 11408506880, "loss": 2.745311737060547, "tokens_per_second": 980719.1997586043, "lr": 0.0015, "gradient_norm": 0.16841423511505127, "benchmark": false}
+{"step": 21780, "tokens": 11418992640, "loss": 2.7404130935668944, "tokens_per_second": 979405.6731532753, "lr": 0.0015, "gradient_norm": 0.158935546875, "benchmark": false}
+{"step": 21800, "tokens": 11429478400, "loss": 2.743579864501953, "tokens_per_second": 855127.0073245649, "lr": 0.0015, "gradient_norm": 0.17852526903152466, "benchmark": false}