I'd not start to do this as it will for sure break other addons which rely on events and crafting functions you would skip then (we alredy had this happen with some addons and it's a mess to find out and tell the devs to stop this please so other addons will work normal again!)
AND I bet it will not be the way ZOs would like it to work as skipping delays will stress the server more than they have build it to work "their way".
Have a look at LibLazyCrafting, maybe it is able to help there a bit.
As you've noted, there's some minor things that can be done like skipping some enchanting animation. However, in general, it's not really possible. LibLazyCrafting uses the most low level crafting functions that can be used, and it still gets much of the delay.