Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -440,3 +440,5 @@
 {"step": 8800, "tokens": 4613734400, "loss": 2.801381492614746, "tokens_per_second": 950571.9755138988, "lr": 0.0015, "gradient_norm": 0.08444861322641373, "benchmark": false}
 {"step": 8820, "tokens": 4624220160, "loss": 2.876637077331543, "tokens_per_second": 981684.880754016, "lr": 0.0015, "gradient_norm": 0.0745430439710617, "benchmark": false}
 {"step": 8840, "tokens": 4634705920, "loss": 2.8507137298583984, "tokens_per_second": 979714.4990773012, "lr": 0.0015, "gradient_norm": 0.07116901129484177, "benchmark": false}
+{"step": 8860, "tokens": 4645191680, "loss": 2.861048126220703, "tokens_per_second": 987968.3009214861, "lr": 0.0015, "gradient_norm": 0.07557233422994614, "benchmark": false}
+{"step": 8880, "tokens": 4655677440, "loss": 2.858736038208008, "tokens_per_second": 973079.5058719201, "lr": 0.0015, "gradient_norm": 0.06807484477758408, "benchmark": false}