Sidebar's 'Signed in as' line now wraps the display name in a link to /account so the existing sidebar-compact view becomes the entry point for the fuller page — keeps the sign-out button where it was for muscle memory, just adds the detail page one click away. Page is gated with [Authorize] (any authenticated admin) rather than a specific role — the capability table deliberately works for every signed-in user so they can see what they DON'T have access to, which helps them file the right ticket with their LDAP admin instead of getting a plain Access Denied when navigating blindly.
Capability → required-role table is defined as a private readonly record list in the page rather than pulled from a service because it's a UI-presentation concern, not runtime policy state — the runtime policy IS Program.cs's AddAuthorizationBuilder + each page's [Authorize] attribute, and this table just mirrors it for operator readability. Comment on the list reminds future-me to extend it when a new policy or [Authorize] page lands. No behavior change if roles are empty, but the page surfaces a hint ('Sign-in would have been blocked, so if you're seeing this, the session claim is likely stale') that nudges the operator toward signing out + back in.
No new tests added — the page is pure display over claims; its only logic is the 'has-capability' Any-overlap check which is exactly what ASP.NET's [Authorize(Roles=...)] does in-framework, and duplicating that in a unit test would test the framework rather than our code. Admin.Tests Unit stays 23 pass / 0 fail. Admin build clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>