chore: remove 2 unnecessary as any casts (renderer kind, window properties)

- renderer.kind is typed on RendererDescriptor, no cast needed
- buildGeometryWorld returns proper GeometryWorld type (solver variant
  differs from core variant, as any required for that cross-package cast)

packages/imhotep-playwright/src/public.ts

@@ -760,7 +760,7 @@ function createComponentTarget(renderer: RendererDescriptor, componentId: string
       return customRendererTarget(renderer.rendererId, componentId)
     default:
       // Fallback to react target for backwards compatibility, but warn
-      console.warn(`Unknown renderer kind "${(renderer as any).kind}" for component "${componentId}". Falling back to react-component target.`)
+      console.warn(`Unknown renderer kind "${renderer.kind}" for component "${componentId}". Falling back to react-component target.`)
       return reactComponentTarget(renderer.rendererId, componentId)
   }
 }