zlay: add collectiondir deploy manifests + justfile recipes
- collectiondir-values.yaml: helm values for shadow collectiondir service
(port 2510, 10Gi PVC, connects to zlay firehose internally)
- collectiondir-servicemonitor.yaml: prometheus scrape config
- justfile: deploy-collectiondir, logs-collectiondir recipes +
publish-remote auto-updates collectiondir deployment if it exists
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>