Fix K8s API calls: use param object format

The @kubernetes/client-node API expects parameters as an object:
{ namespace: 'ns', body: pod } instead of positional params.

Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>

src/lib/k8s.ts

@@ -150,7 +150,10 @@ export async function createAgentPod(podName: string, userId: string): Promise<v
   const podSpec = createAgentPodSpec(podName, userId)
 
   try {
-    await client.createNamespacedPod('agents', podSpec)
+    await client.createNamespacedPod({
+      namespace: 'agents',
+      body: podSpec
+    })
     console.log(`✅ Pod ${podName} created successfully`)
   } catch (error: any) {
     console.error(`❌ Failed to create pod ${podName}:`, error.message)
@@ -165,11 +168,14 @@ export async function deleteAgentPod(podName: string): Promise<void> {
   const client = getK8sClient()
 
   try {
-    await client.deleteNamespacedPod(podName, 'agents')
+    await client.deleteNamespacedPod({
+      name: podName,
+      namespace: 'agents'
+    })
     console.log(`✅ Pod ${podName} deleted successfully`)
   } catch (error: any) {
     // Ignore 404 errors (pod already deleted)
-    if (error.statusCode === 404) {
+    if (error.statusCode === 404 || error.response?.statusCode === 404) {
       console.log(`⚠️  Pod ${podName} not found (already deleted)`)
       return
     }
@@ -185,10 +191,13 @@ export async function getPodStatus(podName: string): Promise<string | null> {
   const client = getK8sClient()
 
   try {
-    const response = await client.readNamespacedPod(podName, 'agents')
+    const response = await client.readNamespacedPod({
+      name: podName,
+      namespace: 'agents'
+    })
     return response.body.status?.phase || null
   } catch (error: any) {
-    if (error.statusCode === 404) {
+    if (error.statusCode === 404 || error.response?.statusCode === 404) {
       return null
     }
     throw error