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/09.credit-bet.spec.ts

@@ -0,0 +1,50 @@
+/**
+ * E2E：信用盘下注占用授信，钱包余额不变。
+ */
+
+import { test, expect } from '@playwright/test';
+import {
+  fetchOpenDrawNo,
+  playerLoginViaBypass,
+  setupCreditPlayer,
+  e2e,
+} from './_helper';
+
+const CURRENCY = (process.env.LOTTERY_DEFAULT_CURRENCY ?? 'NPR').toUpperCase();
+const BET_AMOUNT = 10_000;
+
+test('信用玩家下注 → used_credit 增加、钱包 balance 不变', async () => {
+  const credit = await setupCreditPlayer({ credit_limit: 50_000 });
+  const drawNo = await fetchOpenDrawNo();
+
+  const session = await playerLoginViaBypass({
+    site_code: credit.site_code,
+    username: credit.username,
+    password: credit.password,
+  });
+
+  const ctx = await (await import('./_helper')).playerCtxOf(session.access_token);
+  const bal0 = (await (await ctx.get('/api/v1/wallet/balance')).json()) as any;
+  const walletBefore = Number(bal0.data.balance);
+
+  const place = await ctx.post('/api/v1/ticket/place', {
+    data: {
+      draw_id: drawNo,
+      currency_code: CURRENCY,
+      client_trace_id: `e2e-credit-${Date.now()}`,
+      lines: [{ number: '1234', play_code: 'straight', amount: BET_AMOUNT }],
+    },
+  });
+  expect(place.ok()).toBeTruthy();
+  const body = (await place.json()) as any;
+  expect(body.code).toBe(0);
+
+  const bal1 = (await (await ctx.get('/api/v1/wallet/balance')).json()) as any;
+  expect(Number(bal1.data.balance)).toBe(walletBefore);
+  await ctx.dispose();
+
+  const inspect = await e2e<any>('GET', `/inspect/credit-ledger?player_id=${credit.player_id}&limit=5`);
+  expect(inspect.data.count).toBeGreaterThan(0);
+  const hold = inspect.data.rows.find((r: any) => r.reason === 'bet_hold');
+  expect(hold).toBeTruthy();
+});