Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1387,3 +1387,5 @@
 {"step": 27740, "tokens": 14543749120, "loss": 2.709841728210449, "tokens_per_second": 972993.7774869222, "lr": 0.0015, "gradient_norm": 0.1710556447505951, "benchmark": false}
 {"step": 27760, "tokens": 14554234880, "loss": 2.7399322509765627, "tokens_per_second": 970426.7659089611, "lr": 0.0015, "gradient_norm": 0.17956961691379547, "benchmark": false}
 {"step": 27780, "tokens": 14564720640, "loss": 2.729500579833984, "tokens_per_second": 976814.656735601, "lr": 0.0015, "gradient_norm": 0.20494452118873596, "benchmark": false}
+{"step": 27800, "tokens": 14575206400, "loss": 2.723870849609375, "tokens_per_second": 972816.7359314272, "lr": 0.0015, "gradient_norm": 0.16382421553134918, "benchmark": false}
+{"step": 27820, "tokens": 14585692160, "loss": 2.713217926025391, "tokens_per_second": 975075.9961074116, "lr": 0.0015, "gradient_norm": 0.18931762874126434, "benchmark": false}