spotify/web-api-examples ? reverse-engineered prompt

Build me a simple set of Spotify Web API demo pages that show how to log in and pull basic account data.

I want examples for the main Spotify auth flows, including authorization code, PKCE, client credentials, and implicit grant, plus a page that gets the signed in user’s profile. Keep it easy to understand, with small working HTML examples that someone can open and follow along with.

Make the pages feel like a clean starter kit, with clear buttons, short explanations, and the minimum code needed to get each flow working. If you need to check the latest Spotify docs online to make sure the auth steps are current, go ahead and do that.