Can I vibe code MetricsCart?

Build a full-stack digital shelf and MAP price monitoring system using Next.js (App Router), Node.js, BullMQ, Redis, PostgreSQL (Prisma), and Playwright.

1. DATA MODEL:
- TargetProduct: id, sku, brand, name, mapPrice (decimal).
- RetailerSite: id, name, domain, selectorConfig (json containing CSS/XPath selectors for price, availability, title, and search rank).
- TrackedUrl: id, targetProductId, retailerSiteId, url, active (boolean).
- PriceSnapshot: id, trackedUrlId, detectedPrice (decimal), inStock (boolean), searchRank (int), scrapedAt (timestamp), screenshotUrl (string).
- ViolationAlert: id, trackedUrlId, priceSnapshotId, violationType (MAP_UNDER, OUT_OF_STOCK), status (OPEN, RESOLVED).

2. SCRAPING ENGINE & WORKER PIPELINE:
- Implement a background cron worker using BullMQ and Redis that runs every 6 hours.
- The worker executes Playwright tasks to fetch each active TrackedUrl.
- Integrate an anti-bot proxy provider (e.g., Bright Data or ZenRows API) into Playwright context configuration.
- Extract detectedPrice and availability using retailerSiteId selectorConfig. Fallback to extracting schema.org Microdata or JSON-LD if CSS selectors fail.
- Save a visual screenshot of the scraped page to local storage/S3 for legal compliance proof.

3. ALERT & MAP ENGINE:
- If detectedPrice < targetProduct.mapPrice, create a ViolationAlert record.
- Trigger immediate notification via Slack Webhooks and Nodemailer email alerts detailing SKU, retailer, target MAP price, detected price, and screenshot link.
- Calculate daily price trends and average search rank per product across all tracked retailers.

4. FRONTEND DASHBOARD:
- Build an executive dashboard showing total SKUs tracked, total active MAP violations, and channel compliance score (%).
- A detailed product table displaying target MAP vs detected price per retailer with color-coded tags (Red: Violation, Green: Compliant, Gray: Out of Stock).
- A URL management interface to add new target retailer URLs and test selector rules in real time.

5. ERROR HANDLING:
- Flag scrapers that return 403, 429, or missing selectors, marking the site status as 'PARSER_BROKEN' without triggering false price violation alerts.

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