configureGPUFromRenderTexture method
Configures GPU contexts on this workspace from a RenderTexture. On web, extracts ore/render context pointers directly from the texture's JS renderer object, avoiding global state. On native (FFI), delegates to initGPUScripting + setOreContext + setRenderContext as before.
Implementation
void configureGPUFromRenderTexture(RenderTexture? renderTexture) =>
configureGPUFromRenderTextureImpl(this, renderTexture);