Preserve the most severe Proxmox connection member state so offline members roll up correctly.
Move history-chart tooltips beside the hovered point when space allows and resolve PBS metric alerts against PBS thresholds during config reevaluation.
Refs #1441
Refs #1452
Refs https://github.com/rcourtman/Pulse/discussions/1448
Fix snapshot, backup, powered-off, and config-reevaluation guest threshold resolution by routing them through shared guest alert context instead of override-only fallback paths.\n\nFixes #1418