Adds Aegean map (#3384)

## Description:

Adds Aegean map, a map centered in the Aegean Sea and the aegean islands
between Greece and Turkey. Map has approx. 1M land tiles, size of
1600x2000.

Nations are named after Ancient Greece era city-states and tribes.
Elevation source from OpenTopography, already credited

<img width="1600" height="2000" alt="image"
src="https://github.com/user-attachments/assets/e4f52d6e-bba4-4641-9eac-31e3ddee354e"
/>
<img width="453" height="445" alt="Captura de pantalla 2026-03-08
141256"
src="https://github.com/user-attachments/assets/5d2bc8cf-1e54-461a-ae0f-9bb2dafc2db6"
/>

This has been a heavily requested map in the community, having
suggestions in the Discord, Subreddit and even in some videos (for
example i saw Ultimus Rex suggest an aegean map when asked what maps he
would like in his last stream)

The map is designed so that the greek and turkish main landmasses are
around 400,000 pixels in area, which combined account for around less or
equal to 80% of the map. This means players will have to cross the sea
to win, and to do so they will have to hop across the islands, which
means there will be heavy warship action, instead of having stalemates
like in most island maps where the gap between islands is too large and
players would rather bomb each other.

## 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

## Please put your Discord username so you can be contacted if a bug or
regression is found:

tri.star1011

src/core/game/Game.ts

@@ -138,6 +138,7 @@ export enum GameMapType {
   NileDelta = "Nile Delta",
   Arctic = "Arctic",
   SanFrancisco = "San Francisco",
+  Aegean = "Aegean",
 }
 
 export type GameMapName = keyof typeof GameMapType;
@@ -188,6 +189,7 @@ export const mapCategories: Record<string, GameMapType[]> = {
     GameMapType.NileDelta,
     GameMapType.Arctic,
     GameMapType.SanFrancisco,
+    GameMapType.Aegean,
   ],
   fantasy: [
     GameMapType.Pangaea,

src/server/MapPlaylist.ts

@@ -81,6 +81,7 @@ const frequency: Partial<Record<GameMapName, number>> = {
   NileDelta: 4,
   Arctic: 6,
   SanFrancisco: 3,
+  Aegean: 6,
 };
 
 const TEAM_WEIGHTS: { config: TeamCountConfig; weight: number }[] = [