Comprehensive platform audit: security, UX, performance, and visual polish

Phase 1: Security - status transition validation, Zod tightening, DB indexes, transactions

Phase 2: Admin UX - search/filter for awards, learning, partners pages

Phase 3: Dashboard - Recent Activity feed, Pending Actions card, quick actions

Phase 4: Jury - assignments progress/urgency, autosave indicator, divergence highlighting

Phase 5: Portals - observer charts, mentor search, login/onboarding polish

Phase 6: Messages preview dialog, CsvExportDialog with column selection

Phase 7: Performance - query optimizations, loading skeletons, useDebounce hook

Phase 8: Visual - AnimatedCard, hover effects, StatusBadge, empty state CTAs

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

prisma/schema.prisma

@@ -613,6 +613,7 @@ model ProjectFile {
   @@unique([bucket, objectKey])
   @@index([projectId])
   @@index([roundId])
+  @@index([projectId, roundId])
   @@index([fileType])
 }
 
@@ -651,6 +652,7 @@ model Assignment {
   @@index([projectId])
   @@index([roundId])
   @@index([isCompleted])
+  @@index([projectId, userId])
 }
 
 model Evaluation {
@@ -1339,6 +1341,13 @@ model SpecialAward {
 
   sortOrder        Int              @default(0)
 
+  // Eligibility job tracking
+  eligibilityJobStatus  String?        // PENDING, PROCESSING, COMPLETED, FAILED
+  eligibilityJobTotal   Int?           // total projects to process
+  eligibilityJobDone    Int?           // completed so far
+  eligibilityJobError   String?        @db.Text // error message if failed
+  eligibilityJobStarted DateTime?      // when job started
+
   createdAt        DateTime         @default(now())
   updatedAt        DateTime         @updatedAt
 
@@ -1379,6 +1388,7 @@ model AwardEligibility {
   @@index([awardId])
   @@index([projectId])
   @@index([eligible])
+  @@index([awardId, eligible])
 }
 
 model AwardJuror {