Add application migration workflow.

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

backend/src/common/kubernetes-proxy.util.ts

@@ -0,0 +1,42 @@
+import * as k8s from '@kubernetes/client-node';
+
+function normalizeNoProxyValue(value?: string): string[] {
+  return (value || '')
+    .split(',')
+    .map((entry) => entry.trim().replace(/^['"]|['"]$/g, ''))
+    .filter(Boolean);
+}
+
+function appendNoProxyEntries(envKey: 'NO_PROXY' | 'no_proxy', entries: string[]): void {
+  const existing = normalizeNoProxyValue(process.env[envKey]);
+  if (existing.includes('*')) {
+    return;
+  }
+
+  const merged = new Set(existing);
+  for (const entry of entries) {
+    merged.add(entry);
+  }
+
+  process.env[envKey] = Array.from(merged).join(',');
+}
+
+export function registerKubeconfigNoProxy(kubeconfig: string): string[] {
+  const kc = new k8s.KubeConfig();
+  kc.loadFromString(kubeconfig);
+
+  const cluster = kc.getCurrentCluster() || kc.getClusters()[0];
+  if (!cluster?.server) {
+    return [];
+  }
+
+  const url = new URL(cluster.server);
+  const entries = new Set<string>();
+  entries.add(url.hostname);
+  entries.add(url.host);
+
+  appendNoProxyEntries('NO_PROXY', Array.from(entries));
+  appendNoProxyEntries('no_proxy', Array.from(entries));
+
+  return Array.from(entries);
+}