The role-navigation and navigation E2E tests asserted on a stale nav model —
labels 'Data Connections', 'Instances', 'Areas' that NavMenu.razor no longer
uses, 'Connections' mapped to /admin instead of /design, and Event Logs /
Parked Messages treated as all-roles when they are Deployment-role gated.
SitesPage_ShowsTable expected an HTML <table> but Sites.razor renders site
cards. Corrected the expectations to the actual NavMenu/Sites markup; the
role-based authorization itself was already correct. Suite: 43/43.
