By: Michael Lynch <git@mtlynch.io>
Allow per-item decisions during bulk adds Prompt for each duplicate during stored-list applies and support Yes, No, Yes to All, and No to All choices. Preserve non-duplicate additions and cart state while applying the selected merge decisions. Add end-to-end coverage for two distinct existing cart items and all four bulk choices. Testing: ./dev-scripts/run-e2e-tests Testing: ./dev-scripts/build-all-flake-targets