Refactor: Clean main.py

app/core/state.py

@@ -1,6 +1,7 @@
 import logging
 from typing import Dict, List, Optional
 from app.models.device import DeviceSchema, GroupModel
+from app.core.discovery import DiscoveryService
 
 logger = logging.getLogger(__name__)
 
@@ -36,3 +37,4 @@ class StateManager:
 
 
 state_manager = StateManager()
+discovery_service = DiscoveryService()