Tidy the repo root (README + LICENSE stay there per convention; everything else
moves):
- CONTRIBUTING.md, PROMISE.md, FOOTPRINT.md -> docs/ (alongside USER.md/DEVELOPMENT.md)
- update the references: README links, the website site.json raw URLs, init.sh's
'see FOOTPRINT.md' comments -> docs/FOOTPRINT.md; drop the now-redundant
CONTRIBUTING.md export-ignore (docs/ is already export-ignored).
Refresh FOOTPRINT.md: it claimed 'everything lives under /docker', which is no
longer true. Now describes the three relocatable roots (system/containers/backups)
and makes explicit that the roots + manager name are baked into the helpers/unit/
wrapper at install (the privilege boundary) while this out-of-root footprint stays
fixed by design. Uninstall sketch + sudoers/unit rows updated for the configurable
manager. CONTRIBUTING/PROMISE were already current — left as-is.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
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