[US-036] Bulk product import via CSV #8
Description
User Story
As a store owner with a large catalog,
I want to import products in bulk via CSV,
So that I don't have to add each product manually.
Acceptance Criteria
- CSV template downloadable from dashboard
- CSV fields: name, description, price, category, SKU, stock_status, image_url
- Validation errors shown per row before import
- Successful import shows count of products added
- Failed rows downloadable as error report CSV