config：更新项目配置文件

- 优化Jest测试配置
- 更新package.json依赖和脚本

package.json

@@ -1,7 +1,7 @@
 {
   "name": "pixel-game-server",
-  "version": "1.1.1",
-  "description": "A 2D pixel art game server built with NestJS - 支持验证码登录功能和邮箱冲突检测",
+  "version": "1.2.0",
+  "description": "A 2D pixel art game server built with NestJS - 完整的游戏服务器，包含用户认证、位置广播、聊天系统、管理员后台等功能模块",
   "main": "dist/main.js",
   "scripts": {
     "dev": "nest start --watch",
@@ -59,6 +59,7 @@
     "zulip-js": "^2.1.0"
   },
   "devDependencies": {
+    "@faker-js/faker": "^10.2.0",
     "@nestjs/cli": "^10.4.9",
     "@nestjs/schematics": "^10.2.3",
     "@nestjs/testing": "^10.4.20",