171c486939
The `select(ImportSettings).where(id == 1)).scalar_one()` singleton load was repeated 15× across services, API, and 5 task modules. Added async load() + sync load_sync() classmethods on the model and migrated all 15 full-row sites (callers already imported ImportSettings, so no new imports; dropped download's now-orphaned select import). Left maintenance.py's deliberate column-select (import_scan_path only) as-is. Rest of the service layer was already adequately DRY — the Record/to_dict pattern is only 2 instances and the savepoint find-or-create recovery is correctly per-entity, so neither was forced into a shared abstraction. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>