nhn/tui.calendar ? reverse-engineered prompt

Build me a full featured calendar component that I can use in a web app.

I want it to show monthly, weekly, daily, and a couple of month style views, and let users create, edit, drag, and resize events right on the calendar. It should support regular schedules, plus milestone and task style items, and have default popups for creating and viewing event details. Make it easy to customize the look, including the header, the grid cells, and the overall theme.

If it makes sense, include versions that work in plain JavaScript, React, and Vue, so people can drop it into different kinds of projects. Keep it polished and practical, with sensible defaults, good browser support, and clean docs so I can see how to use it quickly. Look up current docs online if you need to.