SPDX license update

examples/CustomShader/inverse-circle.comp.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // Custom UI compute shader. Demonstrates the Tier 1 dispatch path:
 // the user defines their own item struct, writes their own GLSL alongside
 // the standard shaders (sharing the same UIDispatchHeader contract via

examples/CustomShader/inverse-circle.comp.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // DOM-mode port of inverse-circle.comp.glsl. Inverts RGB inside each
 // user-supplied circle; passes through every other pixel so the
 // ping-pong carries the prior dispatch's scene forward.

examples/CustomShader/main.cpp

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // Tier 1 demo: a user-authored compute shader dispatched alongside the
 // standard ones. The custom shader inverts RGB in the area covered by a
 // list of circles. The mouse-tracking circle moves; two static ones sit

examples/CustomShader/project.cpp

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 import std;
 import Crafter.Build;
 namespace fs = std::filesystem;