fix(helm): rename service to avoid envPrefix conflict

SvelteKit adapter-node uses TASKPLANER_ envPrefix for config.
Kubernetes creates SERVICENAME_* env vars for each service.
Service named "taskplaner" creates TASKPLANER_PORT_* which conflicts.

Changes:
- Add service.name option (default: "tp-app")
- Update ingress to reference configured service name

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

helm/taskplaner/templates/ingress.yaml

@@ -33,7 +33,7 @@ spec:
             pathType: {{ .pathType }}
             backend:
               service:
-                name: {{ include "taskplaner.fullname" $ }}
+                name: {{ $.Values.service.name | default (include "taskplaner.fullname" $) }}
                 port:
                   name: http
           {{- end }}

helm/taskplaner/templates/service.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: {{ include "taskplaner.fullname" . }}
+  name: {{ .Values.service.name | default (include "taskplaner.fullname" .) }}
   labels:
     {{- include "taskplaner.labels" . | nindent 4 }}
 spec:

helm/taskplaner/values.yaml

@@ -36,6 +36,9 @@ securityContext:
       - ALL
 
 service:
+  # Name override to avoid Kubernetes creating TASKPLANER_* env vars
+  # which conflict with the app's envPrefix
+  name: "tp-app"
   type: ClusterIP
   port: 80
   targetPort: 3000