Answer on candidate (#72)

* Add Penalty Seconds on tests

* Refactors and start of candidate answer relation

* Add breadcrumbs and UI consistency updates across backoffice templates

* Add breadcrumbs and UI consistency updates across backoffice templates

* Add Dutch translations for email verification and security messages

* Rector

* Refactor for code consistency and type safety assertions across repositories and entities

* Refactor candidate-related logic to optimize queries, improve template separation, and add "Answer Mapping" functionality.

* Cleanup

* Update Symfony

* Add coderabbit config

* Fixes from coderabbit

migrations/Version20260309220448.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20260309220448 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add started field to quiz_candidate and copy existing created values';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE quiz_candidate ADD started TIMESTAMP(0) WITH TIME ZONE DEFAULT NULL');
+
+        // Copy created to started for existing rows (these were created when quiz started)
+        $this->addSql('UPDATE quiz_candidate SET started = created WHERE started IS NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE quiz_candidate DROP started');
+    }
+}