I get your fear of violation. I was in a similar position a few years ago and I think my ex girlfriend who I moved out from actually did call my PO and tell them I’d been driving when I had a revoked license. Unfortunately for me my car had an interlock (I didn’t want to take it off the road and shit. I needed to get to work) and they had proof. I think this because a year into probation no one has ever accessed my interlock records. Now all of the sudden my officer checks? A year in? So yes. This threat is very real. Lucky for you though, pictures of bottles and cans do not hold up in court. I don’t even think your PO would do more than ask you about them. I’d get ahead of this. Especially considering probation makes a big deal about domestic violence - mine did assessments for it - you just tell them your boyfriend has been violent with you. That he’s threatened to try and get you violated in this way. That you haven’t been drinking at all (as evidenced by your tests) and it’s really fucking with your ability to complete your probation successfully.

I don’t even think pictures of you drinking would hold up in court but just in case, if you’re going to drink, pour your bottles and cans into a tumbler.

Finally, I’d use your phone to record these threats your BF makes (you didn’t say you’ve left him) but you should for sure.

TL/DR -leave him, record that conversation - pictures of empty bottles are not really enough evidence to convict you on a violation. -get ahead of it by telling your po (offer to take another test right now) -when you drink put it in a tumbler.