Competition/Round architecture: full platform rewrite (Phases 1-9)

Replace Pipeline/Stage system with Competition/Round architecture.
New schema: Competition, Round (7 types), JuryGroup, AssignmentPolicy,
ProjectRoundState, DeliberationSession, ResultLock, SubmissionWindow.
New services: round-engine, round-assignment, deliberation, result-lock,
submission-manager, competition-context, ai-prompt-guard.
Full admin/jury/applicant/mentor UI rewrite. AI prompt hardening with
structured prompts, retry logic, and injection detection. All legacy
pipeline/stage code removed. 4 new migrations + seed aligned.

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

src/server/services/in-app-notification.ts

@@ -307,11 +307,11 @@ export async function notifyAdmins(params: {
  * Notify all jury members for a specific stage
  */
 export async function notifyStageJury(
-  stageId: string,
+  roundId: string,
   params: Omit<CreateNotificationParams, 'userId'>
 ): Promise<void> {
   const assignments = await prisma.assignment.findMany({
-    where: { stageId },
+    where: { roundId },
     select: { userId: true },
     distinct: ['userId'],
   })