dumb pistol question

I wouldn't own a firearm that can't be dry fired. In a modern pistol there should be no issues.
On the other hand, in order to not have the firing pin spring under compression you might try racking the action with the trigger pulled. That works on bolt action rifles for sure, maybe a pistol too.

this sounds sensible, so i will give that a shot
why don't you dry fire the snap cap and just leave that cap in the chamber, if you have to use it you will have to chamber a round anyway thus ejecting the snap cap.

apart from tying up the snap caps, i like the idea of leaving the gun "empty"

but if i cant, this will probably be what i'll end up doing