Add file requirements per round and super admin promotion via UI

Part A: File Requirements per Round
- New FileRequirement model with name, description, accepted MIME types, max size, required flag, sort order
- Added requirementId FK to ProjectFile for linking uploads to requirements
- Backend CRUD (create/update/delete/reorder) in file router with audit logging
- Mime type validation and team member upload authorization in applicant router
- Admin UI: FileRequirementsEditor component in round edit page
- Applicant UI: RequirementUploadSlot/List components in submission detail and team pages
- Viewer UI: RequirementChecklist with fulfillment status in file-viewer

Part B: Super Admin Promotion
- Added SUPER_ADMIN to role enums in user create/update/bulkCreate with guards
- Member detail page: SUPER_ADMIN dropdown option with AlertDialog confirmation
- Invite page: SUPER_ADMIN option visible only to super admins

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

src/app/(admin)/admin/members/invite/page.tsx

@@ -69,7 +69,7 @@ import {
 import { cn } from '@/lib/utils'
 
 type Step = 'input' | 'preview' | 'sending' | 'complete'
-type Role = 'PROGRAM_ADMIN' | 'JURY_MEMBER' | 'MENTOR' | 'OBSERVER'
+type Role = 'SUPER_ADMIN' | 'PROGRAM_ADMIN' | 'JURY_MEMBER' | 'MENTOR' | 'OBSERVER'
 
 interface Assignment {
   projectId: string
@@ -99,6 +99,7 @@ interface ParsedUser {
 const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/
 
 const ROLE_LABELS: Record<Role, string> = {
+  SUPER_ADMIN: 'Super Admin',
   PROGRAM_ADMIN: 'Program Admin',
   JURY_MEMBER: 'Jury Member',
   MENTOR: 'Mentor',
@@ -399,16 +400,18 @@ export default function MemberInvitePage() {
             const name = nameKey ? row[nameKey]?.trim() : undefined
             const rawRole = roleKey ? row[roleKey]?.trim().toUpperCase() : ''
             const role: Role =
-              rawRole === 'PROGRAM_ADMIN'
-                ? 'PROGRAM_ADMIN'
-                : rawRole === 'MENTOR'
-                ? 'MENTOR'
-                : rawRole === 'OBSERVER'
-                  ? 'OBSERVER'
-                  : 'JURY_MEMBER'
+              rawRole === 'SUPER_ADMIN'
+                ? 'SUPER_ADMIN'
+                : rawRole === 'PROGRAM_ADMIN'
+                  ? 'PROGRAM_ADMIN'
+                  : rawRole === 'MENTOR'
+                    ? 'MENTOR'
+                    : rawRole === 'OBSERVER'
+                      ? 'OBSERVER'
+                      : 'JURY_MEMBER'
             const isValidFormat = emailRegex.test(email)
             const isDuplicate = email ? seenEmails.has(email) : false
-            const isUnauthorizedAdmin = role === 'PROGRAM_ADMIN' && !isSuperAdmin
+            const isUnauthorizedAdmin = (role === 'PROGRAM_ADMIN' || role === 'SUPER_ADMIN') && !isSuperAdmin
             if (isValidFormat && !isDuplicate && email) seenEmails.add(email)
             return {
               email,
@@ -646,6 +649,11 @@ export default function MemberInvitePage() {
                             <SelectValue />
                           </SelectTrigger>
                           <SelectContent>
+                            {isSuperAdmin && (
+                              <SelectItem value="SUPER_ADMIN">
+                                Super Admin
+                              </SelectItem>
+                            )}
                             {isSuperAdmin && (
                               <SelectItem value="PROGRAM_ADMIN">
                                 Program Admin