Fix lint errors

src/capa_de_integracion/dependencies.py

@@ -1,6 +1,8 @@
+"""Dependency injection and service lifecycle management."""
+
 from functools import lru_cache
 
-from .config import settings
+from .config import Settings, settings
 from .services import (
     ConversationManagerService,
     DLPService,
@@ -68,7 +70,7 @@ def get_conversation_manager() -> ConversationManagerService:
 # Lifecycle management functions
 
 
-def init_services(settings) -> None:
+def init_services(settings: Settings) -> None:
     """Initialize services (placeholder for compatibility)."""
     # Services are lazy-loaded via lru_cache, no explicit init needed