fix(k8s): use distinct app label for job pods

Job pod templates used the same app={deployment_id} label as
deployment pods, causing pods_in_deployment() to return both.
This made the logs command warn about multiple pods and pick
the wrong one.

Use app={deployment_id}-job for job pod templates so they are
not matched by pods_in_deployment(). The Job metadata itself
retains the original app label for stack-level queries.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

stack_orchestrator/deploy/k8s/cluster_info.py

@@ -710,7 +710,9 @@ class ClusterInfo:
             elif job_name.endswith(".yaml"):
                 job_name = job_name[: -len(".yaml")]
 
-            pod_labels = {"app": self.app_name, **({"app.kubernetes.io/stack": self.stack_name} if self.stack_name else {})}
+            # Use a distinct app label for job pods so they don't get
+            # picked up by pods_in_deployment() which queries app={app_name}.
+            pod_labels = {"app": f"{self.app_name}-job", **({"app.kubernetes.io/stack": self.stack_name} if self.stack_name else {})}
             template = client.V1PodTemplateSpec(
                 metadata=client.V1ObjectMeta(
                     labels=pod_labels