Can I vibe code LitCommerce?

Build a lightweight multichannel inventory synchronization service using Node.js, TypeScript, PostgreSQL, and BullMQ.

1. DATA MODEL
- Create core tables: Stores (id, name, platform_type, api_credentials), MarketplaceConnections (id, platform_name, auth_tokens, status), Products (id, store_id, sku, title, base_price), VariantMappings (id, product_id, channel_name, external_variant_id, external_sku), and InventoryLogs (id, sku, delta, channel, status, timestamp).

2. CORE FUNCTIONALITY
- Webhook Handler: Expose endpoints to ingest real-time inventory updates from a primary Shopify store.
- Queue Processing: Put incoming stock update events into a BullMQ Redis queue to handle concurrency and avoid race conditions.
- Channel Adapter Architecture: Implement a modular interface `MarketplaceAdapter` with a standard method `updateStock(externalSku: string, newQuantity: number)`.
- Create a concrete adapter for eBay REST API (Inventory API) to patch stock quantities.
- State Management: Store external listing IDs mapped to primary store SKUs so updates route to the correct channel endpoint.

3. FAILURE MODES & EDGE CASES
- Rate Limiting: Implement exponential backoff inside BullMQ jobs when channel APIs return 429 status codes.
- Delta Sync Lock: Use Redis distributed locks (Redlock) per SKU during stock adjustments to prevent race conditions during simultaneous orders.
- Logging: Store failing sync payloads in the InventoryLogs table with complete error responses for manual inspection.

4. OUT OF SCOPE
- Do not build complex category taxonomy mapping.
- Do not build Amazon SP-API authorization flows (limit initial channels to REST-based APIs like eBay).
- Exclude complex price translation logic.

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