fix: reliable source upload, build cancel, WordPress port 80 default

- Replace port-forward/netcat PVC upload with kubectl cp for integrity
- Add build cancellation API and session cleanup; deploy catches cancel
- Default port 80 for WordPress, PHP, and Laravel on create
- Build progress modal with cancel; Helm/K8s adjustments for deployments
- Update build and kubernetes specs

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/helm/cloudhost-app/templates/deployment.yaml

@@ -231,11 +231,6 @@ spec:
         - name: app-storage
           persistentVolumeClaim:
             claimName: {{ $name }}-storage
-        {{- if .Values.wordpress.enabled }}
-        - name: wp-content
-          persistentVolumeClaim:
-            claimName: {{ $name }}-wp-content
-        {{- end }}
         {{- if .Values.elasticsearch.enabled }}
         - name: app-logs
           emptyDir: {}

backend/helm/cloudhost-app/templates/wp-pvc.yaml

@@ -1,19 +0,0 @@
-{{- if .Values.wordpress.enabled }}
-{{- $name := include "cloudhost-app.name" . -}}
-{{- $ns   := include "cloudhost-app.namespace" . -}}
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: {{ $name }}-wp-content
-  namespace: {{ $ns }}
-  labels:
-    {{- include "cloudhost-app.labels" . | nindent 4 }}
-  annotations:
-    "helm.sh/resource-policy": keep
-spec:
-  accessModes:
-    - ReadWriteOnce
-  resources:
-    requests:
-      storage: {{ .Values.wordpress.wpContentStorageSize | quote }}
-{{- end }}

backend/helm/cloudhost-app/values.yaml

@@ -51,7 +51,6 @@ database:
 # ── WordPress-specific ───────────────────────────────────
 wordpress:
   enabled: false
-  wpContentStorageSize: "2Gi"
 
 # ── Redis ──────────────────────────────────────────────
 redis: