chore: make sure that there is only one app

src/server/utils/dependencies.py

@@ -103,40 +103,6 @@ def reset_series_app() -> None:
     _series_app = None
 
 
-def get_optional_series_app() -> Optional[SeriesApp]:
-    """
-    Dependency to optionally get SeriesApp instance.
-    
-    Returns None if not configured instead of raising an exception.
-    Useful for endpoints that can validate input before needing the service.
-    
-    Returns:
-        Optional[SeriesApp]: The main application instance or None
-    """
-    global _series_app
-    
-    # Try to load anime_directory from config.json if not in settings
-    if not settings.anime_directory:
-        try:
-            from src.server.services.config_service import get_config_service
-            config_service = get_config_service()
-            config = config_service.load_config()
-            if config.other and config.other.get("anime_directory"):
-                settings.anime_directory = str(config.other["anime_directory"])
-        except Exception:
-            return None
-    
-    if not settings.anime_directory:
-        return None
-    
-    if _series_app is None:
-        try:
-            _series_app = SeriesApp(settings.anime_directory)
-        except Exception:
-            return None
-    
-    return _series_app
-
 
 async def get_database_session() -> AsyncGenerator:
     """