统一日志类的定义

main.py

@@ -10,12 +10,12 @@ import os
 from app.config import settings
 from app.database import engine
 from app.routes import router
-from app.logger import get_logger, LoggerManager
+from app.logger import LoggerManager, get_main_logger
 
 
 # 初始化日志系统
 LoggerManager.setup_logging()
-logger = get_logger("main")
+logger = get_main_logger()
 
 # Celery Worker 进程管理
 celery_worker_process = None