I’m building a web application whose core goal is helping users “make code” directly in the browser. For this first milestone the only must-have feature is a robust, ergonomic code editor. I’m picturing something along the lines of Monaco or Ace, with syntax highlighting, tabbed files, find-replace, and basic linting out of the box. Here’s what I need delivered: • A responsive single-page app (React, Vue, Svelte or similar—choose what you’re fastest with) that loads the editor instantly. • Support for at least JavaScript, Python, and HTML/CSS syntax highlighting, with an easy path to add more languages later. • User settings saved in local storage (theme, font size, tab width). • Clean, well-commented code and a short README explaining setup and build commands. If you can wire this up quickly and cleanly, we can discuss follow-on phases like live code compilation or Git-style versioning, but for now the editor experience is the entire scope.