So I think someone might have sat on my car without me knowing, maybe to take a selfie or something, but I just noticed that one of my headlights is now misaligned.

It appears that my driver side headlight is now slightly pushed in at the front inside corner. It's not loose or wobbly at all, and there's no damage to the light housing that I can see or feel. Totally solid, just out of place.

I recently had my entire front end refurbished at an authorized Aston Martin shop with a new bumper cover, new headlights, grille, and paintwork, so I know it was all perfect.

Basically, what does this look like it could be? Is it a matter of having it realigned or is it likely something is broken in there?

 

Probably just movement at the mounting points. The headlights have 3 mountings, 1 at the very front. How long ago was the front refurbished? Call and ask if they can look at it.
Most shops have a labor/parts warranty of a year for repairs. I doubt anything is broken.