{ "feature_id": "F-020", "agent": "reviewer", "verdict": "APPROVED", "summary": "F-020 review approved. Shipping module is isolated, exposes ShippingService.calculate(cartTotalCents, address), chooses the cheapest active method, supports free-shipping threshold, and returns clear errors for unknown zones.", "evidence": [ "Read work/current.md, architect.md and implementer.md", "Inspected shipping domain/application/infrastructure/API and migration 015_shipping.js", "Verified cheapest active method selection and free-shipping threshold logic", "Verified zone matching uses country plus most specific postal_code_prefix", "gentle-ai review mode status: receipt-driven development off globally, ordinary Orquestra gate used", "cd project && npm run lint/typecheck/build/test passed", "DB integration shipping/migrations suite passed: 12 files, 47 tests", "./scripts/verify.sh passed" ], "timestamp": "2026-08-15T18:02:37Z" }