feat: productionize paid modes and PvP capture

test/paymentConfigPrecision.test.js

@@ -0,0 +1,38 @@
+const PaymentConfigManager = require('../src/config/paymentConfig');
+const GameModeManager = require('../src/game/gameModeManager');
+
+describe('PaymentConfigManager atomic-unit precision', () => {
+    const originalPrice = process.env.DIRECT_GAME_PRICE;
+
+    afterEach(() => {
+        if (originalPrice === undefined) delete process.env.DIRECT_GAME_PRICE;
+        else process.env.DIRECT_GAME_PRICE = originalPrice;
+    });
+
+    test('parses integer environment values above Number.MAX_SAFE_INTEGER exactly', () => {
+        process.env.DIRECT_GAME_PRICE = '100000000000000001';
+
+        const config = new PaymentConfigManager({
+            logger: { warn: jest.fn(), info: jest.fn(), error: jest.fn() }
+        }).getConfig();
+
+        expect(config.modes.direct.price).toBe(100000000000000001n);
+    });
+
+    test('game mode snapshot and public transport preserve large atomic prices exactly', () => {
+        process.env.DIRECT_GAME_PRICE = '100000000000000001';
+        const manager = new PaymentConfigManager({
+            logger: { warn: jest.fn(), info: jest.fn(), error: jest.fn() }
+        });
+        const gmm = new GameModeManager(
+            { query: jest.fn() },
+            {},
+            { CONSOLE_LOGGING: false },
+            manager
+        );
+
+        expect(gmm.singleGamePrice).toBe('100000000000000001');
+        expect(gmm.getGameModeInfo().singleGamePrice).toBe('100000000000000001');
+        expect(gmm.calculatePayout('PAID_SINGLE').amount).toBe('200000000000000002');
+    });
+});