feat: 添加E2E测试环境配置支持

添加LOTTERY_E2E环境变量来控制E2E测试相关功能，
包括绕过验证码、登录限制和钱包API URL验证，
同时更新composer.json以包含E2E专用的提供者和服务。

e2e/tests/api/12.broadcast.spec.ts

@@ -0,0 +1,69 @@
+/**
+ * E2E：Reverb balance.update 广播（transfer-in 触发）。
+ */
+
+import { test, expect } from '@playwright/test';
+import { createRequire } from 'node:module';
+import {
+  playerLoginViaBypass,
+  resetE2EPlayer,
+  resetWalletMock,
+  setMockWalletMode,
+  sleep,
+} from './_helper';
+
+test.beforeEach(async () => {
+  await resetWalletMock();
+  await setMockWalletMode('success');
+});
+
+const require = createRequire(import.meta.url);
+const { Pusher } = require('pusher-js') as { Pusher: new (key: string, opts: Record<string, unknown>) => any };
+
+const CURRENCY = (process.env.LOTTERY_DEFAULT_CURRENCY ?? 'NPR').toUpperCase();
+const REVERB_KEY = process.env.REVERB_APP_KEY ?? 'e2e-key';
+const REVERB_HOST = process.env.REVERB_HOST ?? '127.0.0.1';
+const REVERB_PORT = Number(process.env.REVERB_PORT ?? 8080);
+
+test('transfer-in 后收到 balance.update WebSocket 事件', async () => {
+  test.setTimeout(60_000);
+  await resetE2EPlayer();
+  const session = await playerLoginViaBypass();
+  const playerId = session.player.id;
+
+  const events: any[] = [];
+  const pusher = new Pusher(REVERB_KEY, {
+    wsHost: REVERB_HOST,
+    wsPort: REVERB_PORT,
+    forceTLS: false,
+    disableStats: true,
+    enabledTransports: ['ws'],
+    cluster: 'mt1',
+  });
+
+  const channel = pusher.subscribe(`player.${playerId}`);
+  channel.bind('balance.update', (data: unknown) => {
+    events.push(data);
+  });
+
+  await sleep(500);
+
+  const ctx = await (await import('./_helper')).playerCtxOf(session.access_token);
+  const r = await ctx.post('/api/v1/wallet/transfer-in', {
+    data: {
+      amount: 20_000,
+      currency: CURRENCY,
+      idempotent_key: `e2e-bcast-${Date.now()}`,
+    },
+  });
+  expect(r.ok()).toBeTruthy();
+  await ctx.dispose();
+
+  for (let i = 0; i < 30 && events.length === 0; i++) {
+    await sleep(500);
+  }
+
+  pusher.disconnect();
+  expect(events.length).toBeGreaterThan(0);
+  expect(events[0].reason).toBeTruthy();
+});