Document metric alert rules (metric alerts phase 1) - #71
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New automation/alerts page (metric vocabulary, window semantics, delivery via notification channels, limits) and monitoring.md's Alerting section now points at the built-in rules with external monitoring as the escape hatch.
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Summary
Docs for the new metric alert rules (SPEC-metric-alerts.md Phase 1; api#133, apiserver#249, console#335, deploys#61, mcp#50).
automation/alerts.md(weight 7, right after notification channels): fields, metric vocabulary (% of limit vs per-minute rates), rolling-window firing semantics (80%/20% quorums, nodata-holds-firing, built-in hysteresis), renotify, delivery via notification channels (alert.trigger/alert.resolve), limits, API action names, permissionsdeployments/monitoring.mdAlerting section now leads with the built-in rules; external monitoring kept as the escape hatchFollow-up (blocked on console#335 deploy): add a console screenshot via
scripts/screenshots/refresh.sh.Testing
hugo --minifyclean (60 pages); nav places Alerts after Notifications; cross-links resolve.