feat: add hintType and hintData columns to GameRow entity

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

migrations/Version20260330203017.php

@@ -0,0 +1,33 @@
+<?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 Version20260330203017 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE game_row ADD hint_type VARCHAR(20) DEFAULT NULL');
+        $this->addSql('ALTER TABLE game_row ADD hint_data VARCHAR(255) DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE game_row DROP hint_type');
+        $this->addSql('ALTER TABLE game_row DROP hint_data');
+    }
+}