feat(sso-mfa): T04 privacyIDEA manifests (NK-WP-0001-T04)

Deploy privacyIDEA (MFA core) in the mfa namespace:
- pvc.yaml: privacyidea-data (5Gi) and privacyidea-logs (2Gi)
- configmap.yaml: pi.cfg reading secrets from env vars
- deployment.yaml: Deployment + ClusterIP Service (port 8080)
- middleware.yaml: Traefik RateLimit + admin IP AllowList
- ingress.yaml: pink.coulomb.social (portal + admin), pink-account.coulomb.social (self-service)
- create-secrets.sh: creates privacyidea-config Secret
- enckey-bootstrap.sh: post-deploy key extraction + DR Secrets
- bootstrap-admin.sh: pi-admin, trigger-admin, privacyidea-trigger-admin Secret
- verify-t04.sh: 8-section done-criteria checker

Config points CP-NK-002 (pink.coulomb.social) and CP-NK-003
(pink-account.coulomb.social) registered in CONFIG.md.

pink = PrivacyIDEA Net Knights (project mnemonic).

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

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

@@ -21,7 +21,7 @@ spec:
     - Egress
 ---
 # ── Allow ingress from Traefik ───────────────────────────────────────────────
-# pi.yourdomain.com and pi-account.yourdomain.com both terminate at Traefik.
+# pink.coulomb.social and pink-account.coulomb.social both terminate at Traefik.
 apiVersion: networking.k8s.io/v1
 kind: NetworkPolicy
 metadata: