Considering bringing in redbean for built-in HTTP server

Usually, I'm using miniserve installed from Homebrew or I'll fall back to `python3 -m http.server` but perhaps there's some use for [redbean](https://redbean.dev/) in here.

The issue mentions miniserve, `python3 -m http.server`, and redbean, but names no repository file, test, or entry point. Start by locating how hejmo currently uses or documents these server options; done would require a decided scope and an implemented, tested integration if redbean is adopted.

Written by the indexing model from the issue text.