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/email-digest.ts

@@ -145,14 +145,14 @@ async function getDigestContent(
       where: {
         userId,
         isCompleted: false,
-        stage: {
-          status: 'STAGE_ACTIVE',
+        round: {
+          status: 'ROUND_ACTIVE',
           windowCloseAt: { gt: now },
         },
       },
       include: {
         project: { select: { id: true, title: true } },
-        stage: { select: { name: true, windowCloseAt: true } },
+        round: { select: { name: true, windowCloseAt: true } },
       },
     })
 
@@ -162,9 +162,9 @@ async function getDigestContent(
         title: `Pending Evaluations (${pendingAssignments.length})`,
         items: pendingAssignments.map(
           (a) =>
-            `${a.project.title} - ${a.stage?.name ?? 'Unknown'}${
-              a.stage?.windowCloseAt
-                ? ` (due ${a.stage.windowCloseAt.toLocaleDateString('en-US', {
+            `${a.project.title} - ${a.round?.name ?? 'Unknown'}${
+              a.round?.windowCloseAt
+                ? ` (due ${a.round.windowCloseAt.toLocaleDateString('en-US', {
                     month: 'short',
                     day: 'numeric',
                   })})`
@@ -175,12 +175,12 @@ async function getDigestContent(
     }
   }
 
-  // 2. Upcoming deadlines (stages closing within 7 days)
+  // 2. Upcoming deadlines (rounds closing within 7 days)
   if (enabledSections.includes('upcoming_deadlines')) {
     const sevenDaysFromNow = new Date(now.getTime() + 7 * 24 * 60 * 60 * 1000)
-    const upcomingStages = await prisma.stage.findMany({
+    const upcomingRounds = await prisma.round.findMany({
       where: {
-        status: 'STAGE_ACTIVE',
+        status: 'ROUND_ACTIVE',
         windowCloseAt: {
           gt: now,
           lte: sevenDaysFromNow,
@@ -198,11 +198,11 @@ async function getDigestContent(
       },
     })
 
-    upcomingDeadlines = upcomingStages.length
-    if (upcomingStages.length > 0) {
+    upcomingDeadlines = upcomingRounds.length
+    if (upcomingRounds.length > 0) {
       sections.push({
         title: 'Upcoming Deadlines',
-        items: upcomingStages.map(
+        items: upcomingRounds.map(
           (s) =>
             `${s.name} - ${s.windowCloseAt?.toLocaleDateString('en-US', {
               weekday: 'short',
@@ -233,7 +233,7 @@ async function getDigestContent(
       },
       include: {
         project: { select: { id: true, title: true } },
-        stage: { select: { name: true } },
+        round: { select: { name: true } },
       },
     })
 
@@ -242,7 +242,7 @@ async function getDigestContent(
       sections.push({
         title: `New Assignments (${recentAssignments.length})`,
         items: recentAssignments.map(
-          (a) => `${a.project.title} - ${a.stage?.name ?? 'Unknown'}`
+          (a) => `${a.project.title} - ${a.round?.name ?? 'Unknown'}`
         ),
       })
     }