chore: 更新数据库配置和依赖项

- 修改MongoDB连接URL和数据库名称
- 添加安全提示注释
- 更新python-jose依赖以包含cryptography
- 添加email-validator依赖

.env

 # 数据库配置
-MONGODB_URL=mongodb://localhost:27017
-DB_NAME=llm_filter_db
+# 注意：生产环境请通过安全的环境变量管理传递凭据，避免将敏感信息提交到版本库
+MONGODB_URL=mongodb://llm:fSjFMwyShmcH4GdR@datacenter.dldzxx.cn:27017/llm?authSource=llm
+DB_NAME=llm
 
 # JWT配置
 SECRET_KEY=your_secret_key_here

requirements.txt

@@ -4,9 +4,10 @@ pydantic==2.4.2
 pydantic-settings==2.0.3
 pymongo==4.6.0
 motor==3.3.1
-python-jose==3.3.0
+python-jose[cryptography]==3.3.0
 passlib==1.7.4
 python-multipart==0.0.6
 bcrypt==4.0.1
 httpx==0.25.0
-python-dotenv==1.0.0
\ No newline at end of file
+python-dotenv==1.0.0
+email-validator==2.1.0
\ No newline at end of file