Nations build SAM launchers (#1931)

## Description:

Fixes #201 by adding the ability for nations to build SAM launchers.

<img width="888" height="625" alt="image"
src="https://github.com/user-attachments/assets/b07f1b4e-d022-4674-b842-bc8b4247825d"
/>

## 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

src/core/execution/SAMLauncherExecution.ts

@@ -50,7 +50,8 @@ class SAMTargetingSystem {
 
   private isInRange(tile: TileRef) {
     const samTile = this.sam.tile();
-    const rangeSquared = this.mg.config().defaultSamRange() ** 2;
+    const range = this.mg.config().defaultSamRange();
+    const rangeSquared = range * range;
     return this.mg.euclideanDistSquared(samTile, tile) <= rangeSquared;
   }