Autolith guide

The current manual is generated from the authoritative Autolith guide. Read it in order or start with a chapter.

1. Intro
2. Goals and verified missions
3. Editor sessions over ACP
4. Emacs and sly
5. Fullscreen terminal
6. Install, update, and uninstall
7. Talk to Autolith
8. Configure Autolith
9. Non-interactive jobs
10. Generations and recovery