FIX: Revert Spawn Highlight Color for DUOS, TRIOS, QUADS (#2298)

## Description:

This PR addresses issue #2297 - Spawn Color Overload in DUOS, TRIOS, and
QUADS game modes. This PR reverts the spawn highlight color behavior for
these game modes so that the player can identify their teammates more
easily in these modes.

See below for example fix. The "self" player and their teammate in this
DUOS mode game are the same `light blue` color as shown in issue #2297
and their opponent is still the same `brown` color as shown in that
issue.

However, now the player's teammate has a green spawn highlight color
(same as v0.26.7 and earlier) and the players on other teams have a
yellow spawn highlight color (same as v0.26.7 and earlier).

<img width="605" height="657" alt="Duos Teammate ID Resolution"
src="https://github.com/user-attachments/assets/6e62830a-31bb-4d3d-ae5a-34b809ea4e13"
/>

The "self" player's spawn highlight color remains a breathing white
ring, consistent with other game modes.

## 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:

GlacialDrift

src/client/graphics/layers/TerritoryLayer.ts

@@ -2,7 +2,12 @@ import { PriorityQueue } from "@datastructures-js/priority-queue";
 import { Colord } from "colord";
 import { Theme } from "../../../core/configuration/Config";
 import { EventBus } from "../../../core/EventBus";
-import { Cell, PlayerType, UnitType } from "../../../core/game/Game";
+import {
+  Cell,
+  ColoredTeams,
+  PlayerType,
+  UnitType,
+} from "../../../core/game/Game";
 import { euclDistFN, TileRef } from "../../../core/game/GameMap";
 import { GameUpdateType } from "../../../core/game/GameUpdates";
 import { GameView, PlayerView } from "../../../core/game/GameView";
@@ -170,6 +175,7 @@ export class TerritoryLayer implements Layer {
       .filter((p) => p.type() === PlayerType.Human);
 
     const focusedPlayer = this.game.focusedPlayer();
+    const teamColors = Object.values(ColoredTeams);
     for (const human of humans) {
       if (human === focusedPlayer) {
         continue;
@@ -191,7 +197,17 @@ export class TerritoryLayer implements Layer {
         // In Team games, the spawn highlight color becomes that player's team color
         // Optionally, this could be broken down to teammate or enemy and simplified to green and red, respectively
         const team = human.team();
-        if (team !== null) color = this.theme.teamColor(team);
+        if (team !== null) {
+          if (teamColors.includes(team)) {
+            color = this.theme.teamColor(team);
+          } else {
+            if (myPlayer.isFriendly(human)) {
+              color = this.theme.spawnHighlightTeamColor();
+            } else {
+              color = this.theme.spawnHighlightColor();
+            }
+          }
+        }
       }
 
       for (const tile of this.game.bfs(