Lilith Moon

Firefox Canvas Renders Nothing

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The assets are loaded and the filenames themselves are visible but selecting different options does not render them to the canvas. 

feat: add model thumbnail rendering

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### Summary This pull request adds 3D model thumbnail support for .obj, .gltf, .stl, .glb, and .fbx formats, using Open3D 0.19.0 for rendering. It supports textures and can color texture-less...