E-commerce Platform Development for Semi-Jewelry Sales

We are building a multi-tenant SaaS platform for jewelry and fashion-jewelry businesses. The platform is intended to manage the complete operational lifecycle of a business, including: - Customers and suppliers - Products, SKUs, media, categories, and pricing - Purchasing and receiving - Inventory and physical custody - Direct sales and point of sale - Group-buying campaigns and customer checkout - Payments and operational finance - Reseller consignment programs - Jewelry rental - Production, plating, and finishing - Logistics and fiscal documents - Communications and notifications - Reports and analytics - SaaS administration, security, compliance, and operations This is not a basic CRUD application. Each feature must include business rules, authorization, persistence, auditability, concurrency handling, accessible user interfaces, and automated tests. More details provided in the attached documentation.