eb114f68e2
Backend: - AlertEvaluationService: evaluates metrics against AlertRules after each heartbeat - Supports cpu_usage_percent and memory_usage_percent metric paths - Operators: >, >=, <, <=, == - 15-minute dedup window to prevent alert spam - AlertRulesController: full CRUD for alert rules (GET/POST/PUT/DELETE) - AlertsController: list with acknowledged filter + POST acknowledge endpoint - IRmmHubClient: added AlertTriggered push method - Program.cs: AlertEvaluationService registered as Scoped Frontend: - AlertsPage: two-tab layout (active alerts + rules) - Alerts tab: severity badges, acknowledge button, all/unack/ack filter - Rules tab: condition display, enabled toggle, delete with confirm - Create rule modal with MetricPath/Operator/Threshold/Severity selects - api/types.ts: AlertRule, AlertItem, CreateAlertRuleRequest types - api/client.ts: alertRulesApi and alertsApi - useAgentSignalR: handles AlertTriggered → invalidates alerts query - App.tsx: Alerts nav item with Bell icon Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>