Updated P3_postgresql.complete.md with full implementation notes including:
- borgmatic borg path fix
- Disaster recovery testing
- CloudNativePG managed roles for borgmatic user
- Dual database backup configuration
- ACL grant for homelab → k8s
- ArgoCD selfHeal disabled for feature branch workflow
- CNPG default values to prevent drift
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
