Deploy cloudhost-logging on cluster registration, ship app and optional service logs to ES with owner isolation, and fix Kibana 8.12 auth via kibana_system.
Co-authored-by: Cursor <cursoragent@cursor.com>
- Add ClusterPool entity for grouping clusters into named pools
- Support 3 deployment modes: manual cluster, pool load-balanced, default fallback
- Pool strategies: least-apps (fewest deployed apps) and round-robin
- Add pool CRUD API endpoints (admin) and public pool listing
- Frontend deploy page: 3-mode cluster selector (Default/Manual/Pool)
- Frontend app detail: shows assigned cluster and pool info
- Admin pools management page with cluster selection and strategy picker
- Application entity extended with poolId field