Very sorry for your loss.
I can't say enough about Calcium Gluconate when @Amiga had one of her ducks egg bound the vet gave her a shot of Cal Glu and she rec using it if this happened again so she shared with the forum and most of us keep it in the frig just in case. It works to cause...
Out of all listed I hope @Eggcessive is around more of the chicken expert
If you have calcium that would be good to give her to help her expel the rest of the egg .