Remove dynamic form builder and complete RoundProject→roundId migration

Major cleanup and schema migration:
- Remove unused dynamic form builder system (ApplicationForm, ApplicationFormField, etc.)
- Complete migration from RoundProject junction table to direct Project.roundId
- Add sortOrder and entryNotificationType fields to Round model
- Add country field to User model for mentor matching
- Enhance onboarding with profile photo and country selection steps
- Fix all TypeScript errors related to roundProjects references
- Remove unused libraries (@radix-ui/react-toast, embla-carousel-react, vaul)

Files removed:
- admin/forms/* pages and related components
- admin/onboarding/* pages
- applicationForm.ts and onboarding.ts routers
- Dynamic form builder Prisma models and enums

Schema changes:
- Removed ApplicationForm, ApplicationFormField, OnboardingStep, ApplicationFormSubmission, SubmissionFile models
- Removed FormFieldType and SpecialFieldType enums
- Added Round.sortOrder, Round.entryNotificationType
- Added User.country

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/app/(admin)/admin/rounds/[id]/edit/page.tsx

@@ -84,7 +84,7 @@ function EditRoundContent({ roundId }: { roundId: string }) {
   const [formInitialized, setFormInitialized] = useState(false)
   const [roundType, setRoundType] = useState<'FILTERING' | 'EVALUATION' | 'LIVE_EVENT'>('EVALUATION')
   const [roundSettings, setRoundSettings] = useState<Record<string, unknown>>({})
-  const [entryNotificationType, setEntryNotificationType] = useState<string>('')
+  // entryNotificationType removed from schema
 
   // Fetch round data - disable refetch on focus to prevent overwriting user's edits
   const { data: round, isLoading: loadingRound } = trpc.round.get.useQuery(
@@ -138,7 +138,6 @@ function EditRoundContent({ roundId }: { roundId: string }) {
       // Set round type, settings, and notification type
       setRoundType((round.roundType as typeof roundType) || 'EVALUATION')
       setRoundSettings((round.settingsJson as Record<string, unknown>) || {})
-      setEntryNotificationType(round.entryNotificationType || '')
       setFormInitialized(true)
     }
   }, [round, form, formInitialized])
@@ -166,7 +165,6 @@ function EditRoundContent({ roundId }: { roundId: string }) {
       settingsJson: roundSettings,
       votingStartAt: data.votingStartAt ?? null,
       votingEndAt: data.votingEndAt ?? null,
-      entryNotificationType: entryNotificationType || null,
     })
 
     // Update evaluation form if criteria changed and no evaluations exist
@@ -353,38 +351,7 @@ function EditRoundContent({ roundId }: { roundId: string }) {
             </CardContent>
           </Card>
 
-          {/* Team Notification */}
-          <Card>
-            <CardHeader>
-              <CardTitle className="text-lg flex items-center gap-2">
-                <Bell className="h-5 w-5" />
-                Team Notification
-              </CardTitle>
-              <CardDescription>
-                Notification sent to project teams when they enter this round
-              </CardDescription>
-            </CardHeader>
-            <CardContent>
-              <Select
-                value={entryNotificationType || 'none'}
-                onValueChange={(val) => setEntryNotificationType(val === 'none' ? '' : val)}
-              >
-                <SelectTrigger>
-                  <SelectValue placeholder="No automatic notification" />
-                </SelectTrigger>
-                <SelectContent>
-                  {TEAM_NOTIFICATION_OPTIONS.map((option) => (
-                    <SelectItem key={option.value || 'none'} value={option.value || 'none'}>
-                      {option.label}
-                    </SelectItem>
-                  ))}
-                </SelectContent>
-              </Select>
-              <p className="text-sm text-muted-foreground mt-2">
-                When projects advance to this round, the selected notification will be sent to the project team automatically.
-              </p>
-            </CardContent>
-          </Card>
+          {/* Team Notification - removed from schema, feature not implemented */}
 
           {/* Evaluation Criteria */}
           <Card>