gen19 RUN: A4 launch (push_ft38 v2n, CAP31 reference)

control/ath-h2-finetune.json

@@ -1 +1 @@
-{"schema": 1, "lane": "ath-h2-finetune", "generation": 18, "state": "RUN"}
+{"schema": 1, "lane": "ath-h2-finetune", "generation": 19, "state": "RUN"}