chore：添加Swagger文档生成依赖

- 安装@nestjs/swagger用于API文档生成
- 安装swagger-ui-express用于文档界面展示

package.json

@@ -28,6 +28,7 @@
     "@nestjs/platform-express": "^10.4.20",
     "@nestjs/platform-socket.io": "^10.4.20",
     "@nestjs/schedule": "^4.1.2",
+    "@nestjs/swagger": "^11.2.3",
     "@nestjs/typeorm": "^11.0.0",
     "@nestjs/websockets": "^10.4.20",
     "@types/bcrypt": "^6.0.0",
@@ -39,6 +40,7 @@
     "pino": "^10.1.0",
     "reflect-metadata": "^0.1.14",
     "rxjs": "^7.8.2",
+    "swagger-ui-express": "^5.0.1",
     "typeorm": "^0.3.28"
   },
   "devDependencies": {