refactor(task): move schedulers and startup/shutdown task into tasks directory

app/service/database_cleanup_service.py

@@ -8,8 +8,6 @@ from datetime import timedelta
 
 from app.database.auth import OAuthToken
 from app.database.verification import EmailVerification, LoginSession, TrustedDevice
-from app.dependencies.database import with_db
-from app.dependencies.scheduler import get_scheduler
 from app.log import logger
 from app.utils import utcnow
 
@@ -434,18 +432,3 @@ class DatabaseCleanupService:
                 "outdated_trusted_devices": 0,
                 "total_cleanable": 0,
             }
-
-
-@get_scheduler().scheduled_job(
-    "interval",
-    id="cleanup_database",
-    hours=1,
-)
-async def scheduled_cleanup_job():
-    async with with_db() as session:
-        logger.debug("Starting database cleanup...")
-        results = await DatabaseCleanupService.run_full_cleanup(session)
-        total = sum(results.values())
-        if total > 0:
-            logger.debug(f"Cleanup completed, total records cleaned: {total}")
-        return results