Performance optimization, applicant portal, and missing DB migration

Performance:
- Convert admin dashboard from SSR to client-side tRPC (fixes 503/ChunkLoadError)
- New dashboard.getStats tRPC endpoint batches 16 queries into single response
- Parallelize jury dashboard queries (assignments + gracePeriods via Promise.all)
- Add project.getFullDetail combined endpoint (project + assignments + stats)
- Configure Prisma connection pool (connection_limit=20, pool_timeout=10)
- Add optimizePackageImports for lucide-react tree-shaking
- Increase React Query staleTime from 1min to 5min

Applicant portal:
- Add applicant layout, nav, dashboard, documents, team, and mentor pages
- Add applicant router with document and team management endpoints
- Add chunk error recovery utility
- Update role nav and auth redirect for applicant role

Database:
- Add migration for missing schema elements (SpecialAward job tracking
  columns, WizardTemplate table, missing indexes)

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

src/components/layouts/role-nav.tsx

@@ -3,7 +3,7 @@
 import { useState, useEffect } from 'react'
 import Link from 'next/link'
 import { usePathname } from 'next/navigation'
-import { signOut } from 'next-auth/react'
+import { signOut, useSession } from 'next-auth/react'
 import { cn } from '@/lib/utils'
 import { Button } from '@/components/ui/button'
 import { UserAvatar } from '@/components/shared/user-avatar'
@@ -50,7 +50,11 @@ function isNavItemActive(pathname: string, href: string, basePath: string): bool
 export function RoleNav({ navigation, roleName, user, basePath, statusBadge }: RoleNavProps) {
   const pathname = usePathname()
   const [isMobileMenuOpen, setIsMobileMenuOpen] = useState(false)
-  const { data: avatarUrl } = trpc.avatar.getUrl.useQuery()
+  const { status: sessionStatus } = useSession()
+  const isAuthenticated = sessionStatus === 'authenticated'
+  const { data: avatarUrl } = trpc.avatar.getUrl.useQuery(undefined, {
+    enabled: isAuthenticated,
+  })
   const { theme, setTheme } = useTheme()
   const [mounted, setMounted] = useState(false)
   useEffect(() => setMounted(true), [])