fix(renderer): correct alpha value setting in renderer property handler

- Updated the alpha property handler to set the clear alpha value correctly, changing the logic from `1` for true to `0` for true, ensuring proper rendering behavior.
- This change enhances the renderer's functionality and aligns with expected behavior for alpha transparency.

src/core/setupRenderer.ts

@@ -51,7 +51,7 @@ const rendererPropertyHandlers: Record<string, PropertyHandler<ColorRepresentati
     immediate: true,
   },
   alpha: {
-    set: (renderer, value) => renderer.setClearAlpha(value as boolean ? 1 : 0),
+    set: (renderer, value) => renderer.setClearAlpha(value as boolean ? 0 : 1),
     immediate: true,
   },
 }