feat: host heartbeat status and dashboard metrics (2.2)

Track agent.heartbeat and report.daily.ssh per host; show online/stale on Hosts UI; dashboard counters and SAC_HEARTBEAT_STALE_MINUTES config.
2026-05-27 13:36:17 +10:00
parent 9ba3c4b63b
commit 04301ab359
14 changed files with 246 additions and 4 deletions
@@ -23,4 +23,7 @@ TELEGRAM_BOT_TOKEN=
 TELEGRAM_CHAT_ID=
 TELEGRAM_MIN_SEVERITY=high

+# Статус хоста по agent.heartbeat (минуты; ssh-monitor шлёт ~раз в 12 ч)
+SAC_HEARTBEAT_STALE_MINUTES=780
+
 CORS_ORIGINS=*