✨ feat(deploy): chart Vault CRDs gated by vault.enabled (default false)

Adds VaultAuth + VaultStaticSecret + VaultDynamicSecret templates gated behind .Values.vault.enabled (default false). Default helm install keeps working in degraded mode. Chart becomes Vault-ready without activating Vault dependencies. iac/ terraform + Vault workflow follow as PR-IAC1 (requires user manual prereqs in Vault).

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

chart/templates/vaultsecret.yaml

@@ -0,0 +1,16 @@
+{{- if .Values.vault.enabled }}
+apiVersion: secrets.hashicorp.com/v1beta1
+kind: VaultStaticSecret
+metadata:
+  name: vault-kv-app
+  namespace: {{ .Release.Namespace }}
+spec:
+  type: kv-v2
+  mount: kvv2
+  path: {{ .Values.vault.kvv2Path }}
+  destination:
+    name: secretkv
+    create: true
+  refreshAfter: 30s
+  vaultAuthRef: auth
+{{- end }}