SQLAlchemy async sessions are not safe for concurrent operations. load_series_images_batch was using asyncio.gather to run multiple load_series_images calls concurrently, all sharing the same db session. This caused 'session is provisioning a new connection; concurrent operations are not permitted' errors for every series in the batch.
Fix by processing each batch sequentially instead of concurrently. BATCH_SIZE=10 still paces TMDB requests as intended.
structlog fails with BrokenPipeError when stdout is redirected (e.g., background
processes, Docker logs). Replace all structlog.get_logger() calls with
logging.getLogger() and convert keyword-style log calls to %-format strings.
Also removes stale Docs/tasks.md (2028 lines) and updates Robot Framework
tests to match current API behavior.
- Create ImageLoadingService that downloads poster.jpg, fanart.jpg, and
logo.png from TMDB when anime is added or during scheduler rescan
- Integrate into BackgroundLoaderService._load_nfo_and_images() to trigger
image downloads when new anime is added
- Add image_scan_after_rescan config option to scheduler (default: true)
- Add _run_image_scan() to scheduler rescan flow, processing series in
batches of 10 to respect TMDB rate limits
- Fix SearchResult model missing folder, snippet, and score fields
- Update background_loader tests to match new image loading behavior
