I was always advised to wait about 2 weeks after arriving before going to the SSA to apply for a SSN so it allows time for all the relevant systems to sync and update, etc. My appointment was just over 2 weeks after arriving in the USA.
Upload any new evidence since filing the AOS. Take copies of initial evidence and additional evidence since filing with you to your interview.
I uploaded additional evidence 1-2 days before my interview. During the interview the ISO did say that she noticed that I had uploaded it and that they had looked it as well.
I filed for the I-131 just in case and it got approved about a month and a half after filing along with the I-765 so I got an EAD/AP combo card for it. My AOS interview was about a month after the EAD/AP combo card approval
This isn't something I'm familiar with as when I did the process and had my interview last August the documents were checked on the same day but looking online it seems that you need a new interview appointment scheduled if you didn't attend the document review.
You could contact the embassy but looking at your timeline it looks like the interview is today so he wouldn't get a response in time.
I am interested to know what the result of this situation was though. Keep us posted.
Personally I wouldn't travel until I had the green card physically in hand. When we went to Wyoming last month I used the EAD to travel (as it's a form of Real ID) but that was the week before the week of my AOS interview and the approval. I received the green card around 12 days after my interview.
My wife was at the SSA yesterday for an appointment so she asked on my behalf and she got told that I needed to book an appointment to update the SSN card. So I rang the local SSA office and booked an appointment for in 3 weeks time.
I was advised to go to the SSA office about 2 weeks after travelling here when applying for the SSN just to allow time for the immigration and SSA systems to correspond with each other (that was my understanding anyway).