refactor(scheduler): 优化定时任务配置和时间处理

- 支持CHECK_INTERVAL_HOURS设置为0以禁用密钥检查任务
- 调整日志清理任务执行时间从凌晨3点改为0点
- 移除timezone依赖，使用本地时间处理
- 优化代码格式和导入顺序
- 为配置编辑器添加CHECK_INTERVAL_HOURS输入验证
- 改进UI布局，为关键配置项添加警告提示

app/scheduler/scheduled_tasks.py

@@ -1,4 +1,3 @@
-
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 
 from app.config.config import settings
@@ -6,9 +5,9 @@ from app.domain.gemini_models import GeminiContent, GeminiRequest
 from app.log.logger import Logger
 from app.service.chat.gemini_chat_service import GeminiChatService
 from app.service.error_log.error_log_service import delete_old_error_logs
+from app.service.files.files_service import get_files_service
 from app.service.key.key_manager import get_key_manager_instance
 from app.service.request_log.request_log_service import delete_old_request_logs_task
-from app.service.files.files_service import get_files_service
 from app.utils.helpers import redact_key_for_logging
 
 logger = Logger.setup_logger("scheduler")
@@ -106,15 +105,16 @@ async def cleanup_expired_files():
     try:
         files_service = await get_files_service()
         deleted_count = await files_service.cleanup_expired_files()
-        
+
         if deleted_count > 0:
             logger.info(f"Successfully cleaned up {deleted_count} expired files.")
         else:
             logger.info("No expired files to clean up.")
-            
+
     except Exception as e:
         logger.error(
-            f"An error occurred during the scheduled file cleanup: {str(e)}", exc_info=True
+            f"An error occurred during the scheduled file cleanup: {str(e)}",
+            exc_info=True,
         )
 
 
@@ -122,44 +122,45 @@ def setup_scheduler():
     """设置并启动 APScheduler"""
     scheduler = AsyncIOScheduler(timezone=str(settings.TIMEZONE))  # 从配置读取时区
     # 添加检查失败密钥的定时任务
-    scheduler.add_job(
-        check_failed_keys,
-        "interval",
-        hours=settings.CHECK_INTERVAL_HOURS,
-        id="check_failed_keys_job",
-        name="Check Failed API Keys",
-    )
-    logger.info(
-        f"Key check job scheduled to run every {settings.CHECK_INTERVAL_HOURS} hour(s)."
-    )
+    if settings.CHECK_INTERVAL_HOURS != 0:
+        scheduler.add_job(
+            check_failed_keys,
+            "interval",
+            hours=settings.CHECK_INTERVAL_HOURS,
+            id="check_failed_keys_job",
+            name="Check Failed API Keys",
+        )
+        logger.info(
+            f"Key check job scheduled to run every {settings.CHECK_INTERVAL_HOURS} hour(s)."
+        )
 
-    # 新增：添加自动删除错误日志的定时任务，每天凌晨3点执行
+    # 新增：添加自动删除错误日志的定时任务，每天凌晨0点执行
     scheduler.add_job(
         delete_old_error_logs,
         "cron",
-        hour=3,
+        hour=0,
         minute=0,
         id="delete_old_error_logs_job",
         name="Delete Old Error Logs",
     )
     logger.info("Auto-delete error logs job scheduled to run daily at 3:00 AM.")
 
-    # 新增：添加自动删除请求日志的定时任务，每天凌晨3点05分执行
+    # 新增：添加自动删除请求日志的定时任务，每天凌晨0点执行
     scheduler.add_job(
         delete_old_request_logs_task,
         "cron",
-        hour=3,
-        minute=5,
+        hour=0,
+        minute=0,
         id="delete_old_request_logs_job",
         name="Delete Old Request Logs",
     )
     logger.info(
         f"Auto-delete request logs job scheduled to run daily at 3:05 AM, if enabled and AUTO_DELETE_REQUEST_LOGS_DAYS is set to {settings.AUTO_DELETE_REQUEST_LOGS_DAYS} days."
     )
-    
+
     # 新增：添加文件过期清理的定时任务，每小时执行一次
-    if getattr(settings, 'FILES_CLEANUP_ENABLED', True):
-        cleanup_interval = getattr(settings, 'FILES_CLEANUP_INTERVAL_HOURS', 1)
+    if getattr(settings, "FILES_CLEANUP_ENABLED", True):
+        cleanup_interval = getattr(settings, "FILES_CLEANUP_INTERVAL_HOURS", 1)
         scheduler.add_job(
             cleanup_expired_files,
             "interval",