docs: add monitoring alerting updates

SUMMARY.md

@@ -8,7 +8,7 @@ SilverLinux is the primary infrastructure server for Silver Solutions.
 
 The platform hosts source control, project management, video conferencing, container management and supporting infrastructure services.
 
-Monitoring, automated backups and restore validation are now operational.
+Monitoring, alerting, automated backups and restore validation are now production-ready.
 
 ---
 
@@ -148,6 +148,7 @@ Components:
 * Grafana
 * Node Exporter
 * cAdvisor
+* Alertmanager
 
 Validated:
 
@@ -157,6 +158,7 @@ Validated:
 * cAdvisor
 * Backup metrics
 * Grafana datasource
+* Alertmanager email routing
 
 Dashboards:
 
@@ -164,9 +166,16 @@ Dashboards:
 * Custom system dashboard
 * Docker monitoring dashboard
 
+Alerting:
+
+* Incident grouping
+* Severity-based routing
+* Alert deduplication
+* Multi-recipient email notifications
+
 Status:
 
-* Operational
+* Production ready
 
 ---
 
@@ -183,7 +192,7 @@ Purpose:
 
 Current version:
 
-* Backup v2
+* Backup v5.3
 
 Validated:
 
@@ -193,10 +202,14 @@ Validated:
 * PostgreSQL backup
 * Email notifications
 * Cron automation
+* Backup metrics export
+* Lock file protection
+* Disk space validation
+* Structured failure handling
 
 Status:
 
-* Operational
+* Production ready
 
 ---
 
@@ -360,7 +373,9 @@ Completed:
 * Grafana + Prometheus
 * Node Exporter
 * cAdvisor
+* Alertmanager
 * Backup metrics integration
+* Incident intelligence
 
 ### Phase 2 - Security And Stability
 
@@ -371,7 +386,7 @@ Completed:
 
 Completed:
 
-* Backup v2 automation
+* Backup v5.3 automation
 * Restore validation
 
 ### Phase 3 - Scale And Enterprise Services