You keep describing her as effectively abnormal, but your behaviour in making every single thing she does as some kind of very personally targeted attempt to 'goad' you or 'upset' you is not normal either.
Nor is assuming she is watching your every movement.
It sounds more like she behaves in a certain way because of whatever mental distress she is experiencing and became very distressed over the boiler issue.
You attribute this to her holding a grudge, but you have too because you've marked her card over it and interpret every single thing she does through the lens of that single incident 2 years ago.
You're making all her behaviour about you. I really doubt that it is. As other pp have pointed out to decide that her fan/ac/whatever is there just to upset you and that she is subjecting herself to sleep deprivation to piss you off is, for lack of a better word, crazy.
Have you ever listened to your front door close from her flat? Chances are if it is a building that was originally built as a single premises rather than two, that it is loud even when you close it normally and she probably feels it vibrate.
The bins... somebody else could have done the things she's blamed you for. Sure, it wasn't you so that's not fair, but it also doesn't mean she's delusional or malicious.
The bed frame - did you communicate to her that it was being picked up? Or did you just put it there and leave her to think it had been dumped (which perhaps felt like the final straw to her of her home being made an uncomfortable place to be)? Sure, maybe you have no legal requirement to communicate but it is respectful and courteous, isn't it? People aren't psychic. And people do get upset about flytipping and damage to the environment around their home, it's natural.
A lot of your examples seem to relate to whatever happened with the bins. As much as you feel targeted, she clearly did too.
To me, she seems like somebody who feels threatened and has become very defensive and distressed.
Much in the same way as yourself.
Viewing her as the enemy, calling her a 'bully', posting about her on social media where it could be picked up by the press (I'm sure there's enough detail here for her to recognise herself), becoming hostile and defensive, becoming paranoid and attributing everything that goes wrong as something she has deliberately done to you (sound familiar?!).... none of that helps.
I think you need to take a step back. Break this narrative you have in your head. Break this vicious cycle you've got yourself in. Life isn't about wrong and right, fair and unfair, and you're wasting energy chasing those things. Trying to prove yourself 'right' or 'innocent' is not going to help anything. Nobody cares.
Stay calm. Take the fuel out of the situation. Don't take it personally. Accept that whether intentionally or otherwise you did have a part to play in how this has developed and how it can be de-escalated.