Require LLM_BASE_URL and LLM_API_KEY for automatic generation, add per-user rate limits, stop publishing backend/LLM settings in docker-compose, and document secure deployment.
Introduce a full Vite/React UI for exams, auth, materials, images, generation, and export. Adapt backend for Sinbad2IA chat API, bcrypt passwords, CORS on port 5173, and schema migrations.
Mireya Cueto Garrido