Hello Yuri,
It sounds good. You mean there is low-level Verge3D JavaScript API that can access the design parts of Blender?
But on the front-end (the browser side), the user has no Blender. Perhaps, it is a question of porting the Blender design functionality to javascript?
I checked Unity, Unreal Engine also. It seems no one has a desirable support for design platform development, even it is a simple platform such as SculptGL