White-Label Invoicing Web App with PWA Support and Multi-Language UI

Complete white-label web application for creating professional quotes, proformas and invoices. Built for small businesses with PWA support, multilingual interface (RO/NL/EN), client database, product catalog, payment tracking, and comprehensive dashboard with receivables, cashflow, VAT reports. Includes landing page, document templates, offline functionality, and full rebrand documentation. Ready to deploy and customize.