Familyreunification of my mother as a doctor with blue card

Hello,

i'm a doctor holding a blue card for the first time since June 2025. I'd like to bring my mother (60 years old and retired) to live with me in Germany. My current Salary from the hospital amounts to 48300 euros Brutto. I'm financially stable and have savings and my mom has a stable retirement income from our home country(Iraq). Regarding the new immigration act in 2024, i'm allowed to bring her here through family reunification, my question is what is going to happen after she comes? is she going to get a blue card? She is not going to work in Germany and will depend on her income from Homecountry, so what is going to happen to the blue card then? how is she going to reside here legally without work? when will she be able to apply for Niederlassung?

Another question regarding Health Insurance, if she's not working then should i register her with PKV? can i get her to be insured with my own GKV?

I'm very thankful for any help or tips regarding my inquiry.

Best regards.