insane/routility-extension ? reverse-engineered prompt

Build me a Roblox browser extension that adds useful info and tools right inside the Roblox website, without sending people to a separate app or tab.

I want item pages to show things like USD value, RAP, demand, trend, price history, and better deal suggestions. Trading should include win or loss checks, a trade calculator, saved trades, and filters for trade ads and old trade cleanup. It should also improve profiles, friends, inventories, servers, communities, and the Creator Hub with things like mutual friends, friend request filters, server region info, exact visit counts, script safety checks, quick links, and Robux to USD. Make it feel native to Roblox, support light and dark mode, and let users turn individual features on and off from a settings page inside Roblox.

If you need to, look up current docs online for Roblox web APIs and browser extension best practices.