It's slow right now, bling... people will be here soon enough to give you 2x4s for the EA...
I would say that as far as transparency, offering your passwords and other info to your wife would be something to do.
Now... she may not accept that, and there's nothing you can do...
Put the offer out there, if she accepts, she accepts, if she doesn't, then move forward...
At that point, aside from being a hermit under house arrest, what can you do to show her you are done with that stuff and are really focused on the family?
Not stuff you do as "extra" for being guilty, but rather stuff that sticks, not done as tricks...
long term stuff that shows your W that you are not only leaving the bad behind, but becoming and even better man and husband...
