Can I vibe code CedCommerce?

Build a multi-channel inventory and order synchronization engine using Node.js, Express, PostgreSQL, and BullMQ.

1. DATA MODEL & SCHEMA:
- Products: internal_sku, title, price, quantity, updated_at.
- ChannelMappings: id, channel_name (e.g., 'amazon', 'ebay'), internal_sku, external_item_id, channel_sku, status, custom_price_multiplier.
- SyncLogs: id, channel_name, action, payload, status, error_message, timestamp.

2. CORE INTEGRATION WORKFLOWS:
- Shopify Webhooks: Create webhook endpoints for 'orders/create' and 'inventory_levels/update'.
- On inventory update: Parse SKU and new total stock quantity. Fetch active ChannelMappings for this SKU. Enqueue background jobs via BullMQ for each connected channel.
- Background Workers: Implement dedicated worker handlers per channel API (e.g., Amazon SP-API, eBay Inventory API).
- Rate Limiting & Error Handling: Implement leaky-bucket rate-limiting per channel. Implement exponential backoff retry logic (up to 5 attempts) on HTTP 429 or 5xx responses.

3. ORDER SYNCHRONIZATION:
- Polling Service: Create a scheduled cron job (every 5 minutes) querying external APIs for new orders.
- Order Injection: Map external marketplace customer and item details into a unified payload, then inject into the primary store API (e.g., Shopify Admin API REST/GraphQL).
- Inventory Deduction: Deduct inventory locally and dispatch stock updates to all other connected marketplace channels immediately to avoid overselling.

4. OUT OF SCOPE:
- Complex tax calculation engines.
- Dynamic category taxonomy auto-mapping.
- Multi-warehouse inventory location routing.

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