Automation rig: add sub-view navigation (catalog/drilldown/setup) #20
Description
Context
The automation rig's navigate command supports top-level tabs (diff, hunt, profiles, multi-server) but not the sub-views within the multi-server tab (catalog, drilldown, setup).
Problem
After a scan completes, the automation script has no way to explicitly navigate to the catalog or drilldown views. It must rely on the automatic view switch or poll get-state and hope.
Suggested approach
Either extend navigate to accept sub-views like multi-server/catalog and multi-server/drilldown, or add dedicated commands like show-catalog, show-setup. The ServerSelectionViewModel already has ShowCatalogCommand, ShowDrilldownCommand, and ShowSetupCommand.
Priority
Low — the automatic view switching after scans mostly covers this, but explicit control would make scripts more deterministic.