{"servicio":"Atenea API","estado":"corriendo","nota":"Esta es la API (sin interfaz web). Prueba GET /health o usa los endpoints con un token.","endpoints":["POST /auth/login","GET /courses","GET /courses/:id","POST /courses/:id/tutor","POST /courses/:id/resumen","POST /courses/:id/flashcards","POST /courses/:id/modules · PUT/DELETE /modules/:id","POST /modules/:id/items · PUT/DELETE /items/:id","POST /items/:id/progreso","GET /courses/:id/submissions","POST /assignments/:id/submit","POST /submissions/:id/pregrade","POST /ai/generar-curso","GET /direccion/kpis","GET /direccion/riesgo","POST /direccion/plan-retencion","GET/POST/PUT/DELETE /periodos","POST /periodos/:id/cerrar","GET/POST/PUT/DELETE /facultades","POST /admin/dashboard/predicciones","GET /health"]}