Can I vibe code Returnless?

Build a self-service Return Management application for an e-commerce store using Next.js App Router, Tailwind CSS, Prisma, and PostgreSQL.

1. DATA MODEL:
- Customer: id, email, name.
- Order: id, externalOrderId, customerId, lineItems (JSON), total, currency, status, createdAt.
- ReturnRequest: id, orderId, returnNumber, status (PENDING, APPROVED, REJECTED, RECEIVED, REFUNDED), reason, returnMethod (STORE_CREDIT, ORIGINAL_PAYMENT), trackingNumber, labelUrl, qrCodeUrl, createdAt.
- ReturnItem: id, returnRequestId, lineItemId, quantity, reason, condition (UNOPENED, DAMAGED, OPENED).

2. CUSTOMER-FACING PORTAL:
- Step 1: Customer enters Order Number and Email to authenticate and retrieve eligible order items.
- Step 2: Customer selects items, quantities, and selects a return reason from a predefined list (e.g., Wrong Size, Defective, Not as Pictured).
- Step 3: Customer chooses return resolution: Store Credit (bonus +10% value) or Original Payment Method.
- Step 4: Validate return eligibility based on a configurable 14-day return window rule.
- Step 5: Upon confirmation, create ReturnRequest and ReturnItem records. Call a mock carrier API (or EasyPost/Karrio endpoint) to generate a return shipping label PDF URL and tracking number. Display the label download link and mobile QR code.

3. ADMIN DASHBOARD:
- Display a table of all ReturnRequests filtered by status.
- Allow admin to mark returns as RECEIVED, set item condition, and trigger refund processing.
- Integrate with Shopify Admin API (or mock endpoint) to issue store credit discounts or trigger payment refunds upon inspection.

4. FAILURE MODES & SECURITY:
- Handle carrier API failure gracefully by marking status as 'LABEL_PENDING' and retrying via a queue.
- Prevent duplicate return requests for the same line item quantity.
- Sanitize customer inputs and enforce rate-limiting on order lookup endpoints.

5. OUT OF SCOPE:
- Complex multi-warehouse routing logic, physical thermal printer drivers, and automated customs document generation.

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