- fix(tasks): use RENDER_SCRIPTS_DIR env var for catalog_assets.py path
(was computing wrong path via __file__ parents → /render-worker/scripts/ which doesn't exist in container)
- fix(models): add AssetLibrary to app/models/__init__.py so alembic autogenerate discovers it
- fix(api): remove unused FileResponse import from asset_libraries.py
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>