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/server/routers/live-voting.ts

@@ -15,13 +15,9 @@ export const liveVotingRouter = router({
           round: {
             include: {
               program: { select: { name: true, year: true } },
-              roundProjects: {
+              projects: {
                 where: { status: { in: ['FINALIST', 'SEMIFINALIST'] } },
-                include: {
-                  project: {
-                    select: { id: true, title: true, teamName: true },
-                  },
-                },
+                select: { id: true, title: true, teamName: true },
               },
             },
           },
@@ -38,13 +34,9 @@ export const liveVotingRouter = router({
             round: {
               include: {
                 program: { select: { name: true, year: true } },
-                roundProjects: {
+                projects: {
                   where: { status: { in: ['FINALIST', 'SEMIFINALIST'] } },
-                  include: {
-                    project: {
-                      select: { id: true, title: true, teamName: true },
-                    },
-                  },
+                  select: { id: true, title: true, teamName: true },
                 },
               },
             },