raguilar011095/planet_heightmap_generation ? reverse-engineered prompt

Build me a browser based worldbuilding studio that lets someone make believable planets from scratch, with no install, no account, and no build step. I want a home page that explains the tools, then three main experiences, one for generating a planet with sliders and direct editing, one for importing a heightmap and wrapping it onto a globe, and one for watching a planet evolve over time from tectonic history to climate, rivers, ice, rocks, and food.

It should feel polished and scientific, with a globe and map view, projection switching, layer controls, exports for images and data, and shareable planet codes or links that reopen the same world. The climate and geology parts should be simplified but real enough to be named and credited, and the whole thing should run well in the browser using modern web graphics. If you need to look up any current docs or details online, go ahead.