UI now shows a small footer badge with:
- release channel + CalVer version (e.g. 'stable-2026.04.47')
- floating image tag (e.g. 'stable')
- time since last container restart (proxy for 'last deployed')
Backend:
- app/api/health.py: /api/health returns image_tag, commit_sha, deployed_at
- app/api/health.py: new /api/version endpoint (lightweight, no DB hit, for
footer badge polling)
Infra:
- startup-script.sh.tpl: resolves image digest from ghcr pull, derives
channel + version from the tag name, and writes AGNES_VERSION /
RELEASE_CHANNEL / AGNES_COMMIT_SHA into .env so the app can surface them
to the UI.
UI:
- app/web/templates/base.html: footer loads /api/version asynchronously and
renders '<channel>-<version> · <tag> · deployed <relative> (<UTC>)'.
Tooltip shows full detail (commit sha, schema version).
