Add Circassian nation (#1577)

## 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

resources/maps/betweentwoseas/manifest.json

@@ -94,6 +94,12 @@
       "flag": "tm",
       "name": "Turkmenistan",
       "strength": 1
+    },
+    {
+      "coordinates": [851, 589],
+      "flag": "Circassia",
+      "name": "Circassia",
+      "strength": 1
     }
   ]
 }

resources/maps/blacksea/manifest.json

@@ -58,6 +58,12 @@
       "flag": "am",
       "name": "Armenia",
       "strength": 1
+    },
+    {
+      "coordinates": [1115, 555],
+      "flag": "Circassia",
+      "name": "Circassia",
+      "strength": 1
     }
   ]
 }

src/client/data/countries.json

@@ -443,6 +443,11 @@
     "continent": "Europe",
     "name": "Chuvashia"
   },
+  {
+    "code": "Circassia",
+    "continent": "Asia",
+    "name": "Circassia"
+  },
   {
     "code": "cp",
     "name": "Clipperton Island"

src/core/execution/utils/BotNames.ts

@@ -157,6 +157,7 @@ export const BOT_NAME_PREFIXES = [
   "Micronesian",
   "Hebrew",
   "Armenian",
+  "Circassian",
   "Georgian",
   "Phoenician",
   "Chaldean",