`create_registry_secret()` was hardcoded to use the "default" namespace,
but pods are deployed to the spec's configured namespace. The secret
must be in the same namespace as the pods for `imagePullSecrets` to work.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Reviewed-on: cerc-io/stack-orchestrator#998
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>