Jury management: create, delete, add/remove members from round detail page

- Added Jury tab to round detail page with full jury management inline
- Create new jury groups (auto-assigns to current round)
- Delete jury groups with confirmation dialog
- Add/remove members with inline member list
- Assign/switch jury groups via dropdown selector
- Added delete endpoint to juryGroup router (unlinks rounds, deletes members)
- Removed CHAIR/OBSERVER role selectors from add-member dialog (all members)
- Removed role column from jury-members-table

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

src/components/admin/jury/jury-members-table.tsx

@@ -29,15 +29,15 @@ import { AddMemberDialog } from './add-member-dialog'
 interface JuryMember {
   id: string
   userId: string
-  role: string
+  role?: string
   user: {
     id: string
     name: string | null
     email: string
   }
-  maxAssignmentsOverride: number | null
-  capModeOverride: string | null
-  preferredStartupRatio: number | null
+  maxAssignmentsOverride?: number | null
+  capModeOverride?: string | null
+  preferredStartupRatio?: number | null
 }
 
 interface JuryMembersTableProps {
@@ -81,7 +81,6 @@ export function JuryMembersTable({ juryGroupId, members }: JuryMembersTableProps
             <TableRow>
               <TableHead>Name</TableHead>
               <TableHead>Email</TableHead>
-              <TableHead className="hidden md:table-cell">Role</TableHead>
               <TableHead className="hidden sm:table-cell">Max Assignments</TableHead>
               <TableHead className="hidden lg:table-cell">Cap Mode</TableHead>
               <TableHead>Actions</TableHead>
@@ -90,7 +89,7 @@ export function JuryMembersTable({ juryGroupId, members }: JuryMembersTableProps
           <TableBody>
             {members.length === 0 ? (
               <TableRow>
-                <TableCell colSpan={6} className="text-center text-muted-foreground">
+                <TableCell colSpan={5} className="text-center text-muted-foreground">
                   No members yet. Add members to get started.
                 </TableCell>
               </TableRow>
@@ -103,11 +102,6 @@ export function JuryMembersTable({ juryGroupId, members }: JuryMembersTableProps
                   <TableCell className="text-sm text-muted-foreground">
                     {member.user.email}
                   </TableCell>
-                  <TableCell className="hidden md:table-cell">
-                    <Badge variant={member.role === 'CHAIR' ? 'default' : 'secondary'}>
-                      {member.role}
-                    </Badge>
-                  </TableCell>
                   <TableCell className="hidden sm:table-cell">
                     {member.maxAssignmentsOverride ?? '—'}
                   </TableCell>