Product images are present and properly referenced

Products without images convert at dramatically lower rates — multiple e-commerce studies place the drop at 30–60% versus imaged listings. Beyond conversion, storing images as local filesystem paths (e.g., /Users/dev/photos/) means images resolve on the developer's machine and return 404s in every other environment: staging, production, and CI. ISO 25010:2011 functional-correctness requires the system to behave correctly across environments, not just locally. A schema that only supports a single image string also locks out gallery experiences and prevents future migration to multi-image CDN storage without a schema change.

Store images as an array of full CDN or absolute URLs in prisma/schema.prisma, and validate at least one URL is present on product creation in src/app/api/products/route.ts.

model Product {
  id     String   @id @default(cuid())
  images String[]
}

if (!images || images.length === 0) {
  return Response.json({ error: 'At least one product image is required' }, { status: 400 })
}

On ingest, reject any URL that matches a local path pattern (/Users/, /home/, C:\) — these will break in every deployed environment.