扫码登录，获取cookies

backend/shared/config.py

@@ -4,16 +4,18 @@ Loads settings from environment variables using pydantic-settings.
 """
 
 from pydantic_settings import BaseSettings
+from typing import Optional
 
 
 class SharedSettings(BaseSettings):
     """Shared settings across all backend services."""
 
-    # Database
-    DATABASE_URL: str = "mysql+aiomysql://root:password@localhost/weibo_hotsign"
-
-    # Redis
-    REDIS_URL: str = "redis://localhost:6379/0"
+    # Database (默认使用 SQLite，生产环境可配置为 MySQL)
+    DATABASE_URL: str = "sqlite+aiosqlite:///../weibo_hotsign.db"
+    #mysql+aiomysql://root:password@localhost/weibo_hotsign
+    # Redis (可选，本地开发可以不使用)
+    REDIS_URL: Optional[str] = None
+    USE_REDIS: bool = False  # 是否启用 Redis
 
     # JWT
     JWT_SECRET_KEY: str = "change-me-in-production"
@@ -22,6 +24,9 @@ class SharedSettings(BaseSettings):
 
     # Cookie encryption
     COOKIE_ENCRYPTION_KEY: str = "change-me-in-production"
+    
+    # Environment
+    ENVIRONMENT: str = "development"
 
     class Config:
         case_sensitive = True