Fix stale session redirect loop, filtering stats to reflect overrides

- Auth layout verifies user exists in DB before redirecting to dashboard,
  breaking infinite loop for deleted accounts with stale sessions
- Jury/Mentor layouts handle null user (deleted) by redirecting to login
- Filtering stats cards and result list now use effective outcome
  (finalOutcome ?? outcome) instead of raw AI outcome
- Award eligibility evaluation includes admin-overridden PASSED projects
- Award shortlist reasoning column shows full text instead of truncating

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

src/app/(mentor)/layout.tsx

@@ -19,7 +19,12 @@ export default async function MentorLayout({
       select: { onboardingCompletedAt: true },
     })
 
-    if (!user?.onboardingCompletedAt) {
+    if (!user) {
+      // User was deleted — session is stale, send to login
+      redirect('/login')
+    }
+
+    if (!user.onboardingCompletedAt) {
       redirect('/onboarding')
     }
   }