fix(deploy): incorporar cryptography en requirements.txt y robustecer instalador install.sh

backend/tests/test_sprint4_optimizer_and_concurrency.py

@@ -13,6 +13,7 @@ from app.models.genetic_algorithm import (
     Gene
 )
 from app.services.optimizer_service import OptimizerService, OptimizerJobStatus
+from app.services.jwt_service import JWTService
 from config.config import Config