I'm glad she's eating.
If she's getting scratch, do make sure grit is available free choice.
Yes, the crop is on the right side of the breast, if she's been eating/drinking, you should be able to feel a slight fullness there. Sometimes a good way to get your bearings is to feel of another...
Is there a bad odor?
If a bad odor then Canker (Trichomoniasis).
If no odor, then either Thrush/Fungal infection, respiratory infection or possibly Wet Form Fowl Pox. Usually with any form of Fowl Pox there's still some lesions on the outside of the beak or face - do you see anything like...
Hopefully the Baytril will help.
Push fluids on her. She can go without food for a couple of days, but not fluids.
I'm not sure what to make of it. I'm inclined the lean toward a blockage in the crop or digestive system, but the bubbles are a bit of a puzzle.
Is she actually pooping or...
Can you post photos of her and the inside of her beak?
I'd re-check her crop, look inside that beak for any obstruction.
See if she can drink on her own if you hold the water/electrolytes up to her beak instead of her having to bend over.
A video of her motions may be interesting. Upload...