Multi-role members, round detail UI overhaul, dashboard jury progress, and submit bug fix

- Add roles UserRole[] to User model with migration + backfill from existing role column
- Update auth JWT/session to propagate roles array with [role] fallback for stale tokens
- Update tRPC hasRole() middleware and add userHasRole() helper for inline role checks
- Update ~15 router inline checks and ~13 DB queries to use roles array
- Add updateRoles admin mutation with SUPER_ADMIN guard and priority-based primary role
- Add role switcher UI in admin sidebar and role-nav for multi-role users
- Remove redundant stats cards from round detail, add window dates to header banner
- Merge Members section into JuryProgressTable with inline cap editor and remove buttons
- Reorder round detail assignments tab: Progress > Score Dist > Assignments > Coverage > Jury Group
- Make score distribution fill full vertical height, reassignment history always open
- Add per-juror progress bars to admin dashboard ActiveRoundPanel for EVALUATION rounds
- Fix evaluation submit bug: use isSubmitting state instead of startMutation.isPending

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

src/components/admin/assignment/reassignment-history.tsx

@@ -1,39 +1,30 @@
 'use client'
 
-import { useState } from 'react'
 import { trpc } from '@/lib/trpc/client'
-import { cn } from '@/lib/utils'
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
 import { Skeleton } from '@/components/ui/skeleton'
 import { Badge } from '@/components/ui/badge'
-import { History, ChevronRight } from 'lucide-react'
+import { History } from 'lucide-react'
 
 export type ReassignmentHistoryProps = {
   roundId: string
 }
 
 export function ReassignmentHistory({ roundId }: ReassignmentHistoryProps) {
-  const [expanded, setExpanded] = useState(false)
   const { data: events, isLoading } = trpc.assignment.getReassignmentHistory.useQuery(
     { roundId },
-    { enabled: expanded },
   )
 
   return (
     <Card>
-      <CardHeader
-        className="cursor-pointer select-none"
-        onClick={() => setExpanded(!expanded)}
-      >
+      <CardHeader>
         <CardTitle className="text-base flex items-center gap-2">
           <History className="h-4 w-4" />
           Reassignment History
-          <ChevronRight className={cn('h-4 w-4 ml-auto transition-transform', expanded && 'rotate-90')} />
         </CardTitle>
         <CardDescription>Juror dropout, COI, transfer, and cap redistribution audit trail</CardDescription>
       </CardHeader>
-      {expanded && (
-        <CardContent>
+      <CardContent>
           {isLoading ? (
             <div className="space-y-3">
               {[1, 2].map((i) => <Skeleton key={i} className="h-16 w-full" />)}
@@ -105,7 +96,6 @@ export function ReassignmentHistory({ roundId }: ReassignmentHistoryProps) {
             </div>
           )}
         </CardContent>
-      )}
     </Card>
   )
 }