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/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "lotterlaravel-e2e",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "test": "playwright test",
+    "test:headed": "playwright test --headed",
+    "test:ui": "playwright test --ui",
+    "report": "playwright show-report"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.49.0",
+    "@types/pusher-js": "^4.2.2",
+    "pusher-js": "^8.4.0"
+  }
+}