fMert/Queyntisen ? reverse-engineered prompt

Build me a terminal based Markdown note editor in Python that feels fast and simple to use.

I want it to open Markdown files in a clean rendered preview by default, with a shortcut to switch into raw text editing when I need to make direct changes. It should feel keyboard driven and a little Vim like, with basic navigation, search, undo, copy, paste, save, and quit commands. Please also add a right side AI chat panel that can read the whole note and rewrite it when I ask, like turning rough notes into clean meeting notes, task lists, or better organized docs.

Make sure the AI setup is built into the editor so I can choose a provider, enter an API key, pick a model, and save those settings locally. It should work with common OpenAI compatible providers too. If you need current docs for any API details, look them up online.