Roadmap

(moved)

This content now lives on two pages that better describe what it actually is:

• Changelog — what was built, when, and why (the former "Done" and "Removed" sections of the repo's own ROADMAP.md).
• Backlog — what's deliberately not built yet and why (the former "Explicitly still open" section).

"Roadmap" implied a forward-looking plan; this content was always mostly a record of decisions already made, which the new names say directly -- the same split canvas_mojo's own wiki made first.