Can I vibe code Gift Up!?

Build a full-stack digital gift card system using Next.js (App Router), Tailwind CSS, Supabase, Stripe, and Resend.  1. DATA MODEL: Create SQL tables for 'gift_cards' (id, code, initial_value_cents, current_balance_cents, currency, purchaser_email, recipient_email, recipient_name, message, scheduled_delivery_at, status, created_at) and 'gift_card_transactions' (id, gift_card_id, amount_cents, order_reference, transaction_type [debit|credit], created_at).  2. CORE PURCHASING FLOW: Build an embeddable React modal that lets customers choose a custom or pre-set amount, input recipient details, select a scheduled send date, and pay via Stripe Checkout. Webhook handler listens for 'checkout.session.completed', generates a cryptographically secure 16-character alphanumeric code, inserts record into Supabase, and schedules email delivery.  3. PDF & EMAIL DELIVERY: Use react-email and @react-pdf/renderer to compile a visual gift card PDF with a QR code containing the gift card redemption URL. Send the email via Resend API on the scheduled delivery date.  4. REDEMPTION & CHECKOUT INTEGRATION: Create a public API endpoint `/api/v1/gift-cards/redeem` that accepts a gift card code and purchase total. The endpoint must use Postgres database transactions with row-level locks to prevent double-spending or race conditions. Deduct the applied balance and log the transaction in 'gift_card_transactions'. Provide a staff redemption UI protected by auth where employees can manually enter/scan a code to check or debit the balance.  5. OUT OF SCOPE: Multi-currency conversion engines, Apple Wallet PKPass binary generation, physical card printing logic.

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