Release v1.0.0 First release of the Python/MATLAB/Octave toolbox for analysing (and optionally synthesising) piecewise-constant coherent gate controllers under scalar structured Hamiltonian perturbations, accompanying the paper "Fidelity-Based Robustness Margins for Finite-Time Quantum Control". Includes Algorithm 1 (Lipschitz + bisection) as the certified default with selectable margin solvers, an exact closed-form per-interval propagator derivative, explicit error control on the two approximated quantities, case study reproduction (make lipschitz-margin-python/matlab/octave), cross-engine compare and verify gates, controller synthesis, an experimental comparison with the Kosut-Lidar-Rabitz time-bandwidth bound, GitLab Python CI, REUSE/AGPL packaging, and checked-in deliverables under results/.