Can I vibe code Swym?

Build a full-stack Wishlist and Back-in-Stock app for a Shopify store using Next.js (App Router), Supabase (PostgreSQL), and Tailwind CSS.

1. DATA MODEL:
- wishlist_items: id, store_id, customer_id (nullable), guest_token (nullable), product_id, variant_id, created_at.
- back_in_stock_subscriptions: id, store_id, email, product_id, variant_id, status ('pending', 'notified'), created_at.
- store_settings: store_id, klaviyo_api_key, min_stock_threshold.

2. STOREFRONT INTEGRATION:
- Create a lightweight JavaScript widget to inject into Shopify product pages.
- Render a 'Heart' icon button for Wishlist and a 'Notify Me When Available' button when variant stock is 0.
- Support anonymous users via UUID stored in cookie/localStorage. Merge guest items into customer_id upon login.

3. BACK-IN-STOCK ENGINE:
- Expose an API endpoint `/api/webhooks/shopify/inventory-update` to handle Shopify `inventory_levels/connect` and `inventory_levels/update` webhooks.
- When variant available quantity goes from 0 to > min_stock_threshold, query pending subscriptions for that variant_id.
- Queue notification jobs to send emails via SendGrid or Klaviyo REST API. Update status to 'notified'.
- Implement a rate limiter/debounce of 15 minutes per variant to prevent notification spam if inventory flickers.

4. ADMIN DASHBOARD:
- Show top 10 most wishlisted products and highest demand out-of-stock items.
- Simple table to view subscriber emails and export as CSV.

5. OUT OF SCOPE:
- Complex marketing automation visual builders or pop-up exit intent modals.

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