Graphos Custom Engine 4.6

Custom Godot 4.6-stable web export template (web_release.zip). Built with Emscripten 4.0.23, optimize=speed, threads=yes. Stripped: 3D, Physics 3D, XR, Navigation, Lightmapper RD, Raycast, MeshOptimizer, Basis Universal, Mobile VR.

Deploy order: publish this asset first. build.sh copies it to ~/.local/share/godot/export_templates/4.6.stable/web_release.zip (the archive itself, not extracted loose files).