Do not add The Sift as native dimension; release it as Marketplace add-on

I suggest The Sift should NOT be added as a native fourth dimension to vanilla Minecraft. The three dimensions (Overworld, Nether, The End) are the core classic worldbuilding of Minecraft for over a decade. Adding a new built-in dimension would break this simple, stable worldview. Instead, please release The Sift as an official Marketplace add-on for Bedrock Edition. Players who want to experience it can download it optionally, while players who prefer the classic vanilla game keep their original world unchanged.