优化入口文件日志输出方式，解决启动日志在终端不显示的问题

apps/jingrow/jingrow/main.py

@@ -5,6 +5,7 @@
 Jingrow 应用入口
 """
 
+import logging
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from contextlib import asynccontextmanager
@@ -14,6 +15,8 @@ from jingrow.services.whitelist import router
 from jingrow.services.scheduler import get_scheduler_status
 from jingrow.core.hooks.init_hooks import init_hooks
 
+logger = logging.getLogger("uvicorn.error")
+
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     """应用生命周期管理"""
@@ -21,29 +24,27 @@ async def lifespan(app: FastAPI):
     try:
         # 初始化钩子系统      
         init_hooks()
-        print("钩子系统已初始化")
+        logger.info("钩子系统已初始化")
         
         # 启动调度器
         await start_scheduler()
-        print("调度器已启动")
+        logger.info("调度器已启动")
         
         # 验证调度器状态        
         status = get_scheduler_status()
-        print(f"调度器状态: 运行={status['running']}, 任务数={status['total_jobs']}")
+        logger.info(f"调度器状态: 运行={status['running']}, 任务数={status['total_jobs']}")
         
     except Exception as e:
-        print(f"启动调度器失败: {e}")
-        import traceback
-        traceback.print_exc()
+        logger.exception(f"启动调度器失败: {e}")
     
     yield
     
     # 关闭事件
     try:
         await stop_scheduler()
-        print("调度器已停止")
+        logger.info("调度器已停止")
     except Exception as e:
-        print(f"停止调度器失败: {e}")
+        logger.exception(f"停止调度器失败: {e}")
 
 def create_app():
     """创建FastAPI应用"""