2007 prius p0A80/p3000 - battery dead or possibly fixable?

I purchased my 2007 Prius a couple of years ago at 220k miles when it had a recently replaced Green Bean battery (battery replaced end of 2021, car purchased end of 2024). I have had no issues with the battery so far with the car, but recently got into a rough spot with some purely mechanical car issues (wheel & struts & brakes.) As a result, my car has been sitting in my parking lot since the 9th of this month. On the 20th of this month, my car spit out a p0A80 error code by itself when a mechanic friend ran my codes trying to help with some of my brake issues. Fast forward to today, I've purchased a Veepeak OBDCheck BLE OBD-II scan tool, and ran the codes again and used the Dr Prius app to run a life expectancy test, and see what was going on with the battery monitor.

Code wise I got P0A80/P3000, as well as a P0301 code that has been around for a little while- I'd replaced the spark plugs recently because of this code, so I am assuming it is related to that, and maybe an old code.

When first using the battery monitor, I saw 12% state of charge, which slowly rose until I took another screenshot at 54%. It eventually got up to about 65% at one point. The other numbers displayed do not mean much to me, as I'm not super well-versed with this kind of stuff.

I then tried running the life expectancy test, which initially showed me 11%, and then after doing it right away again it showed me 4%. I'd mistakenly attempted the full battery test right before without realizing I had to be driving to do it properly, so that may have drained some of my battery, as my car cannot move due to the brake issues I'm also experiencing.

In summary, is there any chance that user error & lack of use could mean the battery is not completely dead and beyond repair? A lot points in that direction, but with how expensive these batteries are + the age and miles on the car, I am trying to be as sure as I can before deciding whether or not to spend several thousand to fix the battery and other issues with the car.

Thanks so much to anyone who can help.