BREAKING: Route components no longer fall back to legacy state arrays.
All data now flows through the unified resource model:
- DockerRoute: uses state.resources filtered for docker-host/docker-container
- HostsRoute: uses state.resources filtered for host
- DashboardView: uses state.resources filtered for node/vm/container
The legacy arrays (state.nodes, state.vms, etc.) are still broadcast
by the backend for API compatibility, but the main UI routes no longer
use them.
If resources array is empty, pages will show no data rather than
falling back to legacy data. This ensures a clean data model with
no hidden fallback behavior.