Cookie was silently never set because NODE_ENV=production forced
secure=true while the app is served over plain HTTP on the LAN (TLS
terminates at a reverse proxy later, not here). Add explicit
COOKIE_SECURE env var, default false.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Vertical slice for Phase 1 (v1-dashboard milestone): Proxmox collector,
SQLite storage, local auth, and a dashboard UI showing host/container
status cards. Config-driven collector registry so future data sources
(SSH-based hosts, Zabbix, network discovery) plug in without rewiring.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>