Complete internship management platform developed for CNI Tunisia to manage internship applications, project assignments, trainee follow-up, internal communication, and evaluations. The system is built with a FastAPI backend and a React + Vite frontend, with role-based dashboards for Admin, Supervisor, and Trainee. Main features include: • Internship application and validation workflow • Internship project catalog with token-based selection • Supervisor ↔ trainee assignment system • Task management with Kanban board • Planning, messaging, and notifications • Document management and validation