[beeje]

The screen door worked as normal. nothing changed there.

From a carpenters point of view (who works on doors EVERY day, I would take matters into my own hands.

The edges of the door have an aluminum U channel that runs all the way around the door (sandwiching the door core itself). The center of that latch side channel is bowed outward in the center(via your drawings).

I would place/hold some wood blocks (with someone's help) at the top and bottom of the door, between the door and frame. Close the door on the blocks and gently push on the middle of the door in an attempt to bend/ straighten it out (a little at a time)

There is nothing else I can think of, short of replacing the door that will fix the issue.
I'm also drawing a blank as to how it got that way.

I deal with this kind of thing on a daily basis with steel commercial doors. Some times they have to be persuaded to do what you want them to do.