A full-stack web application for managing telecom/service contracts between administrators and clients. Built with a React (Vite) frontend and a Spring Boot backend secured with Spring Security, connected to a MongoDB database. The platform supports two roles: Admins — can create and manage clients, issue contracts, track contract history, manage service offers (mobile & internet), and handle support requests. Customers — can log in to view their active contracts, browse available offers, update their profile, and contact support. Key features include role-based authentication, multilingual