Minor nitpick: The registries found on the Bozeman
are NCC-1941 and NCC-1841, not NCC-1942 as you have in the chapter header.
Regarding the stardates, we should probably distinguish between "launch" and "commissioning" here - both expressions have been used on dedication plaques, and might carry different meanings.
"Commissioning" is always good, because it has historically been the practice to decommission a ship when she enters a long period of maintenance or modification, and recommission her at service re-entry. 23rd century ships could then plausibly have late 24th century commissioning dates, reflecting and emphasizing their "zero-houring" as the result of the refit.
"Launch" could carry the same meaning of "relaunch", but isn't quite as satisfactory thus reinterpreted. Perhaps Starfleet uses "launch" (the first physical deployment of the ship, before the first commissioning) on those ships that have only been commissioned once, and "commission" to denote the most recent commissioning on those ships that have spent some time decommissioned already.