Add Northern Hemisphere Map (#1800)

## Description:

This PR adds a new northern hemisphere map (2000x2000 pixels) using a
pierce quincuncial projection. It has 46 nations and 16 new flags. See
#827 for original PR.

<img width="1440" height="800" alt="Screen Shot 2025-08-13 at 7 21 34
PM"
src="https://github.com/user-attachments/assets/8668c59c-ab6c-4242-845c-8b352265805c"
/>
<img width="1440" height="800" alt="Screen Shot 2025-08-13 at 7 22 24
PM"
src="https://github.com/user-attachments/assets/99be8a1e-ceb6-4376-a2d2-fba5c9bd93e2"
/>
<img width="1440" height="800" alt="Screen Shot 2025-08-13 at 7 22 50
PM"
src="https://github.com/user-attachments/assets/9b527be1-05ed-4881-aec3-2919e204b020"
/>
<img width="1440" height="801" alt="Screen Shot 2025-08-13 at 7 22 59
PM"
src="https://github.com/user-attachments/assets/545eff17-4aa5-447f-b0eb-d7dc32eca613"
/>

## 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:

loymdayddaud

---------

Co-authored-by: Lucas Michaud <Lucasmichaud1@gmail.com>
Co-authored-by: Lucas Michaud <45228097+LucasMichaud@users.noreply.github.com>
Co-authored-by: TheGiraffe3 <TheGiraffe3@users.noreply.github.com>
Co-authored-by: Drills Kibo <59177241+drillskibo@users.noreply.github.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: Scott Anderson <662325+scottanderson@users.noreply.github.com>

src/client/components/Maps.ts

@@ -31,6 +31,7 @@ export const MapDescription: Record<keyof typeof GameMapType, string> = {
   FalklandIslands: "Falkland Islands",
   Baikal: "Baikal",
   Halkidiki: "Halkidiki",
+  NorthernHemisphere: "Northern Hemisphere",
   StraitOfGibraltar: "Strait of Gibraltar",
   Italia: "Italia",
   Yenisei: "Yenisei",

src/core/configuration/DefaultConfig.ts

@@ -68,6 +68,7 @@ const numPlayersConfig = {
   [GameMapType.World]: [150, 80, 50],
   [GameMapType.GiantWorldMap]: [150, 100, 60],
   [GameMapType.Halkidiki]: [50, 40, 30],
+  [GameMapType.NorthernHemisphere]: [100, 60, 40],
   [GameMapType.StraitOfGibraltar]: [50, 40, 30],
   [GameMapType.Italia]: [50, 40, 30],
   [GameMapType.Pluto]: [70, 50, 40],

src/core/game/Game.ts

@@ -1,3 +1,4 @@
+/* eslint-disable max-lines */
 import { AllPlayersStats, ClientID } from "../Schemas";
 import { GameMap, TileRef } from "./GameMap";
 import {
@@ -83,6 +84,7 @@ export enum GameMapType {
   FalklandIslands = "Falkland Islands",
   Baikal = "Baikal",
   Halkidiki = "Halkidiki",
+  NorthernHemisphere = "Northern Hemisphere",
   StraitOfGibraltar = "Strait of Gibraltar",
   Italia = "Italia",
   Yenisei = "Yenisei",
@@ -102,6 +104,7 @@ export const mapCategories: Record<string, GameMapType[]> = {
     GameMapType.Asia,
     GameMapType.Africa,
     GameMapType.Oceania,
+    GameMapType.NorthernHemisphere,
   ],
   regional: [
     GameMapType.BlackSea,

src/server/MapPlaylist.ts

@@ -41,6 +41,7 @@ const frequency: Partial<Record<GameMapName, number>> = {
   MarsRevised: 3,
   Mena: 6,
   NorthAmerica: 5,
+  NorthernHemisphere: 5,
   Pangaea: 5,
   Pluto: 6,
   SouthAmerica: 5,