Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -430,3 +430,5 @@
 {"step": 8600, "tokens": 4508876800, "loss": 2.8513208389282227, "tokens_per_second": 817336.110214322, "lr": 0.0015, "gradient_norm": 0.07281629741191864, "benchmark": false}
 {"step": 8620, "tokens": 4519362560, "loss": 2.851582336425781, "tokens_per_second": 981862.5869522684, "lr": 0.0015, "gradient_norm": 0.07156715542078018, "benchmark": false}
 {"step": 8640, "tokens": 4529848320, "loss": 2.846792793273926, "tokens_per_second": 983676.0638463337, "lr": 0.0015, "gradient_norm": 0.06907733529806137, "benchmark": false}
+{"step": 8660, "tokens": 4540334080, "loss": 2.841667366027832, "tokens_per_second": 981499.4644520271, "lr": 0.0015, "gradient_norm": 0.07901810854673386, "benchmark": false}
+{"step": 8680, "tokens": 4550819840, "loss": 2.8558382034301757, "tokens_per_second": 985707.6447773305, "lr": 0.0015, "gradient_norm": 0.07771660387516022, "benchmark": false}