feat: add OSINT Dashboard Kubernetes infrastructure
- Helm chart scaffold (Chart.yaml, values.yaml, _helpers.tpl)
- Namespace + RBAC manifests
- PostgreSQL (CNPG, 3 replicas, PostGIS + TimescaleDB)
- NATS JetStream (3 replicas, persistent, custom subjects)
- Redis Sentinel (1 primary + 2 replicas, HA)
- MinIO distributed (4 replicas, bucket init job)
- Gateway API HTTPRoute + cert-manager TLS certificates
- Monitoring stack (Prometheus, Grafana, Alertmanager, exporters)
- NetworkPolicies (default deny + per-component policies)
- GitHub Actions CI/CD pipeline (lint, template, security scan)
- Flux CD staging overlay
Sirius Devops
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