fix(ci): use kubectl apply -k for MinIO kustomize directory

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

.gitlab-ci.yml

@@ -1447,7 +1447,7 @@ deploy:
       fi
     # Deploy MinIO (in-cluster S3 for compiled binaries and trained models)
     # Must be ready BEFORE service rollout — initContainers fetch binaries from MinIO.
-    - kubectl apply -f infra/k8s/minio/
+    - kubectl apply -k infra/k8s/minio/
     - |
       echo "Waiting for MinIO to be ready..."
       kubectl -n foxhunt rollout status deployment/minio --timeout=120s