urlaubsverwaltung chart: naming scheme, configurable probes, flexible ingress

- Rename all resources from <chart>-<release>-uv-<kind> to the repo
  standard <release>-<chart>-<kind> (deployment, service, ingress, both
  OnePasswordItem secrets); drop the uv infix. No PVCs in this chart, so
  no storage migration is needed.
- TLS secret renamed to the standard tls-<release>-<chart>-ingress
  (was tls-<chart>-<release>-ingress).
- Probes lifted into values (urlaubsverwaltung.livenessProbe/
  readinessProbe/startupProbe); defaults are exactly the previously
  hardcoded, issue-#9-calibrated settings.
- Repo-standard flexible ingress: ingress.className (default nginx),
  ingress.annotations merged with the cert-manager annotation,
  ingress.enabled flag; domain/clusterIssuer stay required.
- Additive urlaubsverwaltung.env block rendered through tpl with
  value/secretKeyRef/configMapKeyRef forms.
- CI fixtures updated to the new secret names.

Major bump 4.1.2+up6.7.0 -> 5.0.0+up6.7.0 (resource renames).

urlaubsverwaltung/templates/urlaubsverwaltung.ingress.yaml

@@ -1,18 +1,22 @@
+{{- if .Values.ingress.enabled }}
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
-  name: {{ .Chart.Name }}-{{ .Release.Name }}-uv-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 }}
+    {{- 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 }}-uv-service
+                name: {{ .Release.Name }}-{{ .Chart.Name }}-service
                 port:
                   name: http
             path: /
@@ -20,4 +24,5 @@ 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
+{{- end }}