feat: revamp admin member detail page, observer dashboard round timeline

- Member detail: tabs layout, impersonate button, icon-pill card headers,
  profile details grid, quick info sidebar, jury groups, mentor assignments
- Observer dashboard: round timeline with special award support,
  round node cards, completion indicators
- Analytics: include specialAwardId/Name in observer round overview

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/server/routers/analytics.ts

@@ -867,6 +867,8 @@ export const analyticsRouter = router({
           roundType: true,
           status: true,
           sortOrder: true,
+          specialAwardId: true,
+          specialAward: { select: { name: true } },
         },
       })
 
@@ -943,6 +945,8 @@ export const analyticsRouter = router({
           roundType: round.roundType,
           roundStatus: round.status,
           sortOrder: round.sortOrder,
+          specialAwardId: round.specialAwardId,
+          specialAwardName: round.specialAward?.name ?? null,
           totalProjects,
           stateBreakdown,
           totalAssignments,