Calibre-Web-Automated chart: naming scheme, security hardening (conventions batch 3)

All audit findings for the calibre-web-automated chart (#32) in one major
bump, 3.1.1+upv4.0.6 -> 4.0.0+upv4.0.6:

- Rename StatefulSet, Service, OnePasswordItem secret and Ingress from the
  inverted <chart>-<release>-cwa-<kind> scheme to
  <release>-<chart>-<kind>; spec.serviceName and all references follow.
  Both PVCs deliberately keep their historical names (documented naming
  exception; renaming would orphan the data).
- TLS secret renamed to the standard tls-<release>-<chart>-ingress.
- Ingress on the repo standard: ingress.className (default nginx),
  ingress.annotations merged with the chart-managed annotations,
  ingress.clusterIssuer now required (was silently defaulted to
  "letsencrypt-issuer").
- Security hardening, values-configurable via securityContext.pod /
  securityContext.container: allowPrivilegeEscalation false, all
  capabilities dropped except the minimal set the s6-overlay init needs
  (CHOWN, DAC_OVERRIDE, FOWNER, KILL, SETGID, SETUID). Documented
  deviations: the image must start as root (s6 drops to PUID 1000) and
  readOnlyRootFilesystem stays false (read-only mode disables PUID/PGID
  remapping upstream and breaks the ImageMagick policy setup).
- Additive env value rendered through tpl (value / secretKeyRef /
  configMapKeyRef forms).
- CI fixtures: secret renamed to the new scheme, clusterIssuer added to
  test-values.

Part of #32.

calibre-web-automated/templates/calibre-web-automated.ingress.yaml

@@ -1,20 +1,23 @@
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
-  name: {{ .Chart.Name }}-{{ .Release.Name }}-cwa-ingress
+  name: {{ .Release.Name }}-{{ .Chart.Name }}-ingress
   annotations:
-    cert-manager.io/cluster-issuer: {{ required "A Cluster-Issuer must be provided" .Values.ingress.clusterIssuer}}
+    cert-manager.io/cluster-issuer: {{ required "A Cluster-Issuer must be provided" .Values.ingress.clusterIssuer }}
     nginx.ingress.kubernetes.io/proxy-body-size: {{ .Values.cwa.maxUploadFileSize }}
     nginx.org/client-max-body-size: {{ .Values.cwa.maxUploadFileSize }}
+    {{- with .Values.ingress.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
 spec:
-  ingressClassName: nginx
+  ingressClassName: {{ .Values.ingress.className }}
   rules:
     - host: {{ required "A Domain/Host must be provided" .Values.ingress.domain }}
       http:
         paths:
           - backend:
               service:
-                name: {{ .Chart.Name }}-{{ .Release.Name }}-cwa-service
+                name: {{ .Release.Name }}-{{ .Chart.Name }}-service
                 port:
                   name: http
             path: /
@@ -22,4 +25,4 @@ spec:
   tls:
     - hosts:
         - {{ required "A Domain/Host must be provided" .Values.ingress.domain }}
-      secretName: tls-{{ .Chart.Name }}-{{ .Release.Name }}-ingress
+      secretName: tls-{{ .Release.Name }}-{{ .Chart.Name }}-ingress