Use bigint for gold (#1000)

## Description:

- Switch gold to bigint.
- Remove unused or untrusted values from event payloads.

## 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 understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

---------

Co-authored-by: Scott Anderson <662325+scottanderson@users.noreply.github.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

src/core/execution/ConstructionExecution.ts

@@ -2,6 +2,7 @@ import { consolex } from "../Consolex";
 import {
   Execution,
   Game,
+  Gold,
   Player,
   PlayerID,
   Tick,
@@ -26,7 +27,7 @@ export class ConstructionExecution implements Execution {
 
   private ticksUntilComplete: Tick;
 
-  private cost: number;
+  private cost: Gold;
 
   constructor(
     private ownerId: PlayerID,

src/core/execution/DonateGoldExecution.ts

@@ -1,5 +1,5 @@
 import { consolex } from "../Consolex";
-import { Execution, Game, Player, PlayerID } from "../game/Game";
+import { Execution, Game, Gold, Player, PlayerID } from "../game/Game";
 
 export class DonateGoldExecution implements Execution {
   private sender: Player;
@@ -10,7 +10,7 @@ export class DonateGoldExecution implements Execution {
   constructor(
     private senderID: PlayerID,
     private recipientID: PlayerID,
-    private gold: number | null,
+    private gold: Gold | null,
   ) {}
 
   init(mg: Game, ticks: number): void {
@@ -28,14 +28,16 @@ export class DonateGoldExecution implements Execution {
     this.sender = mg.player(this.senderID);
     this.recipient = mg.player(this.recipientID);
     if (this.gold === null) {
-      this.gold = Math.round(this.sender.gold() / 3);
+      this.gold = this.sender.gold() / 3n;
     }
   }
 
   tick(ticks: number): void {
     if (this.gold === null) throw new Error("not initialized");
-    if (this.sender.canDonate(this.recipient)) {
-      this.sender.donateGold(this.recipient, this.gold);
+    if (
+      this.sender.canDonate(this.recipient) &&
+      this.sender.donateGold(this.recipient, this.gold)
+    ) {
       this.recipient.updateRelation(this.sender, 50);
     } else {
       consolex.warn(

src/core/execution/DonateTroopExecution.ts

@@ -34,8 +34,10 @@ export class DonateTroopsExecution implements Execution {
 
   tick(ticks: number): void {
     if (this.troops === null) throw new Error("not initialized");
-    if (this.sender.canDonate(this.recipient)) {
-      this.sender.donateTroops(this.recipient, this.troops);
+    if (
+      this.sender.canDonate(this.recipient) &&
+      this.sender.donateTroops(this.recipient, this.troops)
+    ) {
       this.recipient.updateRelation(this.sender, 50);
     } else {
       consolex.warn(

src/core/execution/FakeHumanExecution.ts

@@ -4,6 +4,7 @@ import {
   Difficulty,
   Execution,
   Game,
+  Gold,
   Nation,
   Player,
   PlayerID,
@@ -543,7 +544,7 @@ export class FakeHumanExecution implements Execution {
     return null;
   }
 
-  private cost(type: UnitType): number {
+  private cost(type: UnitType): Gold {
     if (this.player === null) throw new Error("not initialized");
     return this.mg.unitInfo(type).cost(this.player);
   }