refactor: update Vault secret paths to new categorized structure

- authelia: postgresql → storage/postgresql, authelia → security/authelia
- external-secrets: zot → storage/zot (ClusterExternalSecret)
- vault: secret/data/vault/config → security/vault, authelia → security/authelia

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

external-secrets/manifests/zot-cluster-secret.yaml

@@ -23,9 +23,9 @@ spec:
     data:
       - secretKey: USERNAME
         remoteRef:
-          key: zot
+          key: storage/zot
           property: USERNAME
       - secretKey: PASSWORD
         remoteRef:
-          key: zot
+          key: storage/zot
           property: PASSWORD