include/monitor.php: vv_fallback_state() now returns:
enabled, check_interval, handback_strikes, handback_strikes_required,
partnership_suspended, partner_lost_at, partnership_required,
partnership_suspend_after — all read from state file + conf vars.
pages/monitor.php: fallback card render rebuilt:
Disabled: clear message with how to enable
Suspended: partnership inactive with elapsed time
FAILOVER: outage duration + T1/T2/T3/T4 tier badges (active=green,
pending=dark) + handback strike progress dots (●●○) when remote
comes back and strikes are counting
NO_INTERNET/DARK: short contextual line
NORMAL: quiet "monitoring · 30s · partnership gated" meta line
Accent border: disabled/suspended → warn, NORMAL → ok, FAILOVER → err