zeekay c0082f4454 Add PCI DSS v4.0 network architecture compliance document ...

- Three-zone architecture (public API, payments core, vault CDE)
- Trust boundaries with ASCII diagrams and data flow
- SPIFFE/SPIRE mTLS identity matrix
- Kubernetes NetworkPolicy YAML for all namespaces
- HSM key hierarchy and envelope encryption design
- Audit controls, key ceremony procedures, emergency runbooks

2026-02-23 18:38:42 -08:00

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pci-network-architecture.md

Add PCI DSS v4.0 network architecture compliance document

2026-02-23 18:38:42 -08:00