About the donation drive: it seems legit and I encourage people to help her.
I checked the background of the Qasim Child Foundation and they're a registered charity in Australia since 2020. Here's one of their letters from 2022 to the Australian parliament, asking Australia to use its influence on Iran. The director of the foundation, Mehdi Ghatei, is a real person living in Australia and originating from Iran.
What I think about the case: if a person has been "married off" as a child, not because of her wishes, indeed against her informed consent, has tried returning to her parents only to be sent away to an abusive husband, and has subsequently got into a fight with her husband after he harmed her and their child - a court should not convict of murder, but at most "provoked homicide" (if self defense is ruled out).
Extracting confessions without a lawyer present, getting signatures from a person who cannot read (what society fails to teach reading and writing?) - all of this is complete bollocks too, of course. But in the state of Iran, so many things are systematically borked that one loses count. :(
P.S.
Blood money might be a matter of negotiation. The family of her husband might even reconsider if offered a tangible large sum short of their demands instead of mere blood, which benefits nobody.
