- CertificateList: full table with CN/SANs/Issuer/validity columns,
expandable rows for full subject/fingerprint, color-coded status badges
(green valid / yellow expiring <30d / red expired), View Details dialog,
Renew action per row, empty state
- CertificatesPage: real data via listCertificates(), cluster selector for
multi-cluster setups, Upload Custom Certificate dialog (file picker + PEM
input), Order via ACME dialog with domain/node fields, error banner
- SubscriptionPage: two-panel layout — left panel for subscription key entry
and activation with masked key display; right panel cluster status tree
with Active/Expired/None badges, registration and next-due dates
- domain.ts: add Certificate interface (filename, subject, san, issuer,
notbefore, notafter, fingerprint, pem)
- App.tsx: wire /proxmox/subscriptions route and nav entry
2d54858968