feat: audit log clickable links, communication hub recipient details & link options

- Audit log: user names link to /admin/members/{id}, entity IDs link to
  relevant detail pages (projects, rounds, awards, users)
- Communication hub: expandable "View Recipients" section in sidebar shows
  actual users/projects that will receive the message, with collapsible
  project-level detail for applicants and juror assignment counts
- Email link type selector: choose between no link, messages inbox, login
  page, or invite/accept link (auto-detects new vs existing members)

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

src/server/routers/audit.ts

@@ -42,7 +42,7 @@ export const auditRouter = router({
           take: perPage,
           orderBy: { timestamp: 'desc' },
           include: {
-            user: { select: { name: true, email: true } },
+            user: { select: { id: true, name: true, email: true } },
           },
         }),
         ctx.prisma.auditLog.count({ where }),