I wouldn't add the supplements unless you know it's what the quail needs. The cooked egg is good, the mashed oats are more filler than food for her. Hopefully the mashed egg will help her get better, but if she's gone this long without proper food, she might not make it.
Perhaps you can get her some soy protein? I'm trying to think of things that you might have available.
Perhaps you can get her some soy protein? I'm trying to think of things that you might have available.