Can I vibe code Ordergroove?

Build a node.js and React subscription management system integrated with Shopify's GraphQL Admin API and Payment Vaulting.

DATA MODELS:
1. SubscriptionContract: ID, shopifyContractId, customerId, status (ACTIVE, PAUSED, CANCELLED), lineItems (variantId, quantity, currentPrice), deliveryPolicy (intervalUnit, intervalFrequency), billingPolicy (intervalUnit, intervalFrequency), nextBillingDate, paymentMethodToken.
2. SubscriptionOrderLog: ID, contractId, attemptedAt, status (SUCCESS, FAILED), shopifyOrderId, failureReason, retryCount.
3. ChurnSurvey: ID, contractId, reason, discountOffered, actionTaken (PAUSED, SWAPPED, CANCELLED).

CORE FUNCTIONS:
1. Webhook Handlers: Process `orders/create` and `app_subscriptions/update`. Detect subscription line items, store payment tokens securely using Shopify Vault, and initialize SubscriptionContract records.
2. Billing Engine Cron Job: Run daily to query SubscriptionContracts where nextBillingDate <= NOW() and status == 'ACTIVE'. Execute `subscriptionContractAtomicCreateNextBillingAttempt` via Shopify GraphQL API. On failure, trigger dunning workflow.
3. Dunning Logic: On billing failure, schedule retries at +1 day, +3 days, and +7 days. Send automated retry notifications via Klaviyo REST API. If retries fail 3 times, set status to PAUSED.
4. Customer Portal API: Provide authenticated endpoints for end-users to:
   - Skip next delivery (updates nextBillingDate by intervalFrequency).
   - Swap product variant (updates lineItems via Shopify GraphQL `subscriptionContractUpdate`).
   - Pause or cancel contract with mandatory churn survey collection.
5. Ingest and apply flex incentives (e.g., automatically apply a 10% discount on the 3rd recurring order).

FAILURES TO HANDLE:
- Out of stock variant during recurring billing attempt (pause line item and alert customer via email).
- Expired credit card tokens (send self-service payment update link via SMS/email).
- GraphQL rate-limiting from Shopify API (implement exponential backoff with Bottleneck).

OUT OF SCOPE:
- Salesforce Commerce Cloud or SAP Hybris support (Shopify Plus only).
- Manual phone-in customer service portals.
- Custom tax calculation engines (delegate to Shopify Checkout).

$ each button prefixes agent-specific run instructions · build your own product, never copy proprietary code, trademarks or designs