Replace isScanned with state (valid/invalid/expired) and firstScannedAt on BilletOrder

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

migrations/Version20260321200000.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260321200000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Replace isScanned with state and firstScannedAt on billet_order';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql("ALTER TABLE billet_order ADD COLUMN IF NOT EXISTS state VARCHAR(20) DEFAULT 'valid' NOT NULL");
+        $this->addSql('ALTER TABLE billet_order ADD COLUMN IF NOT EXISTS first_scanned_at TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL');
+        $this->addSql('ALTER TABLE billet_order DROP COLUMN IF EXISTS is_scanned');
+        $this->addSql('ALTER TABLE billet_order DROP COLUMN IF EXISTS scanned_at');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE billet_order ADD COLUMN IF NOT EXISTS is_scanned BOOLEAN DEFAULT false NOT NULL');
+        $this->addSql('ALTER TABLE billet_order ADD COLUMN IF NOT EXISTS scanned_at TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL');
+        $this->addSql('ALTER TABLE billet_order DROP COLUMN IF EXISTS state');
+        $this->addSql('ALTER TABLE billet_order DROP COLUMN IF EXISTS first_scanned_at');
+    }
+}