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/src/kubernetes/kubernetes.service.ts

@@ -105,6 +105,7 @@ export class KubernetesService implements OnModuleInit {
         image: imageUri,
         port: app.port,
         replicas: app.replicas,
+        storageSize: app.appStorageSize || '2Gi',
       },
       resources: {
         cpuRequest: app.cpuRequest,
@@ -141,7 +142,6 @@ export class KubernetesService implements OnModuleInit {
       },
       wordpress: {
         enabled: isWordPress,
-        wpContentStorageSize: '2Gi',
       },
       redis: {
         enabled: app.enableRedis || false,
@@ -2431,7 +2431,7 @@ export class KubernetesService implements OnModuleInit {
     const { coreApi, kc } = await this.getK8sClient(app.clusterId);
     const batchApi = kc.makeApiClient(k8s.BatchV1Api);
     const namespace = `user-${app.userId.split('-')[0]}`;
-    const pvcName = `${app.name}-wp-content`;
+    const pvcName = `${app.name}-storage`;
     const jobName = `${app.name}-wp-archive-${Date.now()}`;
 
     const job: k8s.V1Job = {
@@ -2563,7 +2563,7 @@ export class KubernetesService implements OnModuleInit {
     const { coreApi, kc } = await this.getK8sClient(app.clusterId);
     const batchApi = kc.makeApiClient(k8s.BatchV1Api);
     const namespace = `user-${app.userId.split('-')[0]}`;
-    const pvcName = `${app.name}-wp-content`;
+    const pvcName = `${app.name}-storage`;
     const jobName = `${app.name}-wp-restore-${Date.now()}`;
     const secretName = `${jobName}-archive`;