- Add owner_id parameter to pull_inbox() and fetch_attachments_and_enqueue()
to attribute ingested documents to the correct user
- Add _pull_user_integration_imap() to poll IMAP sources from UserIntegration model
- Add _pull_user_integration_watch_folders() to scan watch folders from UserIntegration model
- Add _is_safe_watch_path() for path traversal security on user-configured paths
- Add _scan_user_watch_folder() that passes owner_id to _enqueue_file()
- Update _enqueue_file() to forward owner_id to process_document/convert_to_pdf
- Update celery beat schedule to always enable IMAP and watch folder polling
(user integrations can exist without system-level config)
- Ensure individual connection failures don't crash the polling loop
- Update existing tests for new function signatures
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>