I'm glad to hear she is getting better quickly! Animal attacks are the absolute worst. My hens have also exhibited some uncharacteristic behaviors after we had an attack this summer. I'm not sure about the foot thing, but have you talked to your neighbor about that cat? If it is feral and attacking your birds, it could also be a danger to other pets in the neighborhood and possibly young children if you live in a community.
I'm really sorry you've had this experience and that your neighbor isn't stepping up. I have a lot of experience with feral cats and most of them won't hunt if they're not hungry. I would also say that so long as people show them kindness and respect they will never attack a human unless provoked.
We actually adopted a feral cat colony when living in town so that we could tame, fix, and adopt out the cats. We had a fenced in back yard(there were man made holes in the fence for the animals to come and go) and regularly had our ferals lounging on the deck (both the tame ones and not tame ones) surrounded by birds and squirrels with wild rabbits in the yard just off the deck.
The only time a cat ever stole a baby bunny from the yard it was the neighbors indoor outdoor cat not one of our over 15 ferals.
We have 5 housecats right now that were all ferals, and 4/5 of those were bottle babies.
Of course every situation is different but ferals aren't awful/vindictive it's just because people leave them outside that they become a "problem". I'm really really sorry that this happened and I'm glad Dusty is feeling better. I really hope your neighbor steps up and takes responsibility for the actions of the cat.