feat: 为爬虫测试添加代理支持并通过环境变量配置

添加dotenv依赖，创建jest配置文件和setup文件
修改所有爬虫测试文件以支持通过环境变量配置代理
将jest配置从package.json移动到独立文件

package.json

@@ -32,6 +32,7 @@
     "axios": "^1.13.2",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.3",
+    "dotenv": "^16.4.7",
     "mysql2": "^3.16.0",
     "puppeteer": "^24.34.0",
     "puppeteer-extra": "^3.3.6",
@@ -66,22 +67,5 @@
     "tsconfig-paths": "^4.2.0",
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.20.0"
-  },
-  "jest": {
-    "moduleFileExtensions": [
-      "js",
-      "json",
-      "ts"
-    ],
-    "rootDir": "src",
-    "testRegex": ".*\\.spec\\.ts$",
-    "transform": {
-      "^.+\\.(t|j)s$": "ts-jest"
-    },
-    "collectCoverageFrom": [
-      "**/*.(t|j)s"
-    ],
-    "coverageDirectory": "../coverage",
-    "testEnvironment": "node"
   }
 }