feat(sso-mfa): T02/T03 live apply — age-encrypted secrets, CNPG cluster (NK-WP-0001-T02/T03)

- Add encrypt-secrets.sh / decrypt-secrets.sh: age-based secrets workflow
  replaces KeePassXC dependency; encrypted .env.age files committed to repo
- Add bootstrap/secrets.enc/: all component secrets encrypted to age pubkey
- Fix .gitignore: allow secrets.enc/**/*.age while blocking plaintext
- Fix verify-t02.sh: update netpol names for Authelia+LLDAP+KeyCape stack
- Fix verify-t03.sh: remove keycloak_db/role checks; fix ((PASS++)) set-e bug
- Update postgresql/cluster.yaml: drop keycloak_db, bootstrap privacyidea_db only
- Update postgresql/create-secrets.sh: remove keycloak secret
- Fix netpol-databases.yaml: add port 8000 for CNPG instance manager HTTP API
- T02 COMPLETE: namespaces, network policies, cert-manager issuers applied
- T03 COMPLETE: CNPG operator installed, net-kingdom-pg cluster healthy

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

sso-mfa/k8s/network-policies/netpol-databases.yaml

@@ -93,6 +93,8 @@ spec:
       ports:
         - port: 5432
           protocol: TCP
+        - port: 8000   # CloudNativePG instance manager HTTP API (used for status extraction)
+          protocol: TCP
         - port: 9187   # CloudNativePG metrics exporter
           protocol: TCP
 ---