A just-approved inventory record has a zero-value last_seen (Go 0001-01-01),
which parsed to a pre-epoch instant and slipped past the !t guard, rendering as
"739800d ago". Treat any at-or-before-epoch timestamp as "never" — the honest
state for a born-but-never-connected host (its health/version stay "—" until an
agent dials the gRPC plane).
The themed single-page admin UI (serving/fleet-manager/ui/), embedded into the
binary and served same-origin over the admin plane.
- Svelte 5 + Tailwind 4 + Vite; a sibling of serving/kiosk-app. Theme = LYSANDRA
'restricted-violet' (high-security evolution of the kiosk's flight-deck DNA):
amber deck, VIOLET reserved for privileged/destructive + auth surfaces, teal
telemetry, red alert, clearance chrome (corner-reticle panels, scanlines, mono
clearance labels, secure-link status bar).
- Passkey gate: Login (usernameless discoverable WebAuthn) + Enrol (from the
register-admin one-time link) via navigator.credentials, with base64url<->buffer
helpers and the go-webauthn response shapes.
- Three pillars over the JSON API: Monitor (fleet roster + version-drift + health
+ per-host detail with bespoke SVG telemetry charts), Authorise (pending queue:
fingerprint cross-check, approve+bind in violet, deny), Lifecycle (desired-state
form; drain/reboot confirm-gated). Session-aware fetch client (cookie + CSRF).
- go:embed behind the build tag (spa_embed.go / spa_stub.go) so the
default go build/test need no dist/; mounted at / (api/auth/healthz win).
Verified: npm build clean (71KB JS / 33KB CSS + self-hosted fonts); default +
-tags embedspa go builds; smoke test serves index + assets + API through the SPA
origin. Against an insecure+seeded backend the deck renders passkey-free for
theme work. dist/ + node_modules gitignored.
Audiobuzz