0cf96f88be
- Add FallbackController for proper 404 JSON responses on missing resources - Add non-bang get_source/1 and get_media_item/1 for safe lookups - Fix Task JSON encoder: remove Repo.preload call (not available in encoder scope), handle NotLoaded associations by returning nil - Fix media item index: use list_media_items_for_source/1 instead of list_pending_media_items_for/1 which had overly restrictive filtering - Add missing extras_directory to test config - All 1007 tests pass