My initial impression is that she's a mix - her muzzle just isn't right, imo, for a Husky. What she would be mixed with will be a lot easier to tell in a few more months as more of her adult characteristics come out.
As you say, for a pet it doesn't really matter, jsut as long as you realize that the personalities of a Husky and a Pit are worlds apart. If someone comes into your house to rob you, your Husky will gladly play with them before she shows them where the jewelry is.
And don't laugh, I have three Husky's. One of them barks, one of the whines and one of them ... well, not sure yet, I've only had her for a little over a month and she hasn't done anything in the noise department except growl at the other two!
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“Properly trained, a man can be dog’s best friend.”
Corey Ford .