Merge pull request 'ci+quality: structural gates (CI: 3 new; local: 7 new + .clang-tidy)' (#18) from ci/structural-tests into main

code/include/clausen.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 
 // Clausen integral, Lobachevsky function, and Im(Li2).
 // Ported from de.varylab.discreteconformal.functional.Clausen (Java).

code/include/conformal_mesh.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // conformal_mesh.hpp
 //
 // Central mesh type for the discrete conformal mapping algorithms.

code/include/constants.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // constants.hpp
 //
 // Single source of truth for mathematical constants used throughout

code/include/cp_euclidean_functional.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // cp_euclidean_functional.hpp
 //
 // Phase 9a.1 — Circle-Packing Euclidean functional (CP-Euclidean).

code/include/cut_graph.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // cut_graph.hpp
 //
 // Phase 6 — Tree-cotree algorithm for computing a cut graph of a triangulated

code/include/discrete_elliptic_utility.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 
 // Ported from de.varylab.discreteconformal.util.DiscreteEllipticUtility (Java).
 // Only the pure-math subset (no HDS required).

code/include/euclidean_functional.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // euclidean_functional.hpp
 //
 // Energy and gradient of the Euclidean discrete conformal functional

code/include/euclidean_geometry.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // euclidean_geometry.hpp
 //
 // Corner-angle formula for Euclidean triangles in the discrete conformal

code/include/euclidean_hessian.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // euclidean_hessian.hpp
 //
 // Analytical Hessian of the Euclidean discrete conformal energy —

code/include/fundamental_domain.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // fundamental_domain.hpp
 //
 // Phase 7 — Fundamental domain polygon for closed surfaces.

code/include/gauss_bonnet.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // gauss_bonnet.hpp
 //
 // Phase 6 — Gauss–Bonnet consistency check for prescribed target angles.

code/include/hyper_ideal_functional.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // hyper_ideal_functional.hpp
 //
 // Energy and gradient of the hyper-ideal discrete conformal map functional

code/include/hyper_ideal_geometry.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // hyper_ideal_geometry.hpp
 //
 // Pure-math building blocks for the hyper-ideal discrete conformal map.

code/include/hyper_ideal_hessian.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // hyper_ideal_hessian.hpp
 //
 // Phase 4a — Hessian of the hyper-ideal discrete conformal functional.

code/include/hyper_ideal_utility.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 
 // Hyperbolic tetrahedron volume formulas.
 // Ported from de.varylab.discreteconformal.functional.HyperIdealUtility (Java).

code/include/hyper_ideal_visualization_utility.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // Port of the static helper
 //   HyperIdealVisualizationPlugin.getEuclideanCircleFromHyperbolic()
 // from de.varylab.discreteconformal.plugin.

code/include/inversive_distance_functional.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // inversive_distance_functional.hpp
 //
 // Phase 9a.2 — Inversive-distance circle-packing functional (Luo 2004).

code/include/layout.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // layout.hpp
 //
 // Phase 5/6/7 — Layout / embedding: DOF vector → vertex coordinates in the

code/include/matrix_utility.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 
 // 4x4 mapping matrix from corresponding point pairs.
 // Ported from de.varylab.discreteconformal.math.MatrixUtility (Java).

code/include/mesh_builder.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // mesh_builder.hpp
 //
 // Factory functions that build simple reference meshes for testing and examples.

code/include/mesh_io.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // mesh_io.hpp
 //
 // Phase 4b — CGAL::IO wrappers for ConformalMesh.

code/include/mesh_utils.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // mesh_utils.hpp
 //
 // Conversions between CGAL::Surface_mesh and Eigen matrices.  Used

code/include/newton_solver.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // newton_solver.hpp
 //
 // Phase 4a — Newton solver for all three discrete conformal functionals.

code/include/p2_utility.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 
 // 2-D projective geometry utilities for the Euclidean signature.
 // Ported from de.jreality.math.P2 and de.varylab.discreteconformal.math.P2Big.

code/include/period_matrix.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // period_matrix.hpp
 //
 // Phase 7 — Period matrix for closed surfaces with Euclidean (flat) metric.

code/include/projective_math.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 
 // Projective and hyperbolic geometry utilities.
 // Ported from de.jreality.math.Pn / Rn and

code/include/serialization.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // serialization.hpp
 //
 // Phase 5 — Save and load conformal map results in JSON and XML formats.

code/include/spherical_functional.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // spherical_functional.hpp
 //
 // Energy and gradient of the spherical discrete conformal functional

code/include/spherical_geometry.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // spherical_geometry.hpp
 //
 // Pure-math building blocks for the spherical discrete conformal map.

code/include/spherical_hessian.hpp

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 // spherical_hessian.hpp
 //
 // Analytical Hessian of the spherical discrete conformal energy —

code/include/viewer_utils.h

@@ -1,4 +1,7 @@
 #pragma once
+// Copyright (c) 2024-2026 Tarik Moussa.
+// SPDX-License-Identifier: MIT
+
 
 #include <Eigen/Dense>
 #include <igl/opengl/glfw/Viewer.h>