Replaces the stale CalVer changelog (last updated 2026-06-02, all
referenced tags since deleted) with git-cliff output simulated against
the v0.1.0 tag — matches what release-binaries.yml will publish as
release notes.
- Add 6 TUI screenshots to assets/ (monitors, alerts, logs, nodes, detail, theme)
- Rewrite README with hero image, badges, collapsible install sections
- Rewrite changelog to match actual CalVer tag history
- VHS tooling extracted to lerko/uptop-vhs
Reviewed-on: lerko/uptop#32