## Description:
Adds Circassia as a nation to the `Black Sea` and `Between two seas`
maps. Circassia was a significant country and a historical region in the
North Caucasus that controlled the northeastern Black Sea coast. More
info on Wikipedia: https://en.wikipedia.org/wiki/Circassia
<img width="508" height="315" alt="image"
src="https://github.com/user-attachments/assets/3034c98c-5123-4e28-901f-b194a3f74c46"
/> <img width="504" height="378" alt="image"
src="https://github.com/user-attachments/assets/f63bd6c2-c44a-4620-aac5-c89f3694083a"
/>
## Please complete the following:
- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I have read and accepted the CLA agreement (only required once).
## Please put your Discord username so you can be contacted if a bug or
regression is found:
qunash
qunash
