feat(observability): add Prometheus/Grafana/Loki/Alertmanager/Alloy stack and remove legacy Monitoring UI

backend/tests/test_media_index.py

@@ -1,9 +1,9 @@
 """Unit tests for the SQLite media index service."""
 
-import pytest
-import tempfile
-from pathlib import Path
 from typing import Any
+
+import pytest
+
 from media_library_viewer_api.services.media_index import (
     MediaIndex,
     MediaIndexBuildCancelled,