Add juror quick actions to Members section, redistribute button, dropout emails, and transfer duplicate detection

- Add mail/transfer/reshuffle/redistribute icons to each juror row in Members card
- New redistributeJurorAssignments procedure: reassign all pending projects without dropping juror from group
- New DROPOUT_REASSIGNED email template with project names, deadline, and dropped juror context
- Update reassignDroppedJuror to send per-juror DROPOUT_REASSIGNED emails instead of generic BATCH_ASSIGNED
- Transfer dialog now shows all candidates with "Already assigned" / "At cap" labels instead of hiding them
- SQL script for prod DB insertion of new notification setting without seeding

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

prisma/migrations/insert-dropout-reassigned-setting.sql

@@ -0,0 +1,16 @@
+-- Insert DROPOUT_REASSIGNED notification email setting into production DB
+-- Run manually: psql -d mopc -f prisma/migrations/insert-dropout-reassigned-setting.sql
+-- Safe to run multiple times (uses ON CONFLICT to skip if already exists)
+
+INSERT INTO "NotificationEmailSetting" (
+  "id", "notificationType", "category", "label", "description", "sendEmail", "createdAt", "updatedAt"
+) VALUES (
+  gen_random_uuid()::text,
+  'DROPOUT_REASSIGNED',
+  'jury',
+  'Juror Dropout Reassignment',
+  'When projects are reassigned to you because a juror dropped out or became unavailable',
+  true,
+  NOW(),
+  NOW()
+) ON CONFLICT ("notificationType") DO NOTHING;