update

backend/migrations/Version20260331120000.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260331120000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Remove categoryOverridden: backfill task.category_id from schema, then drop column';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('UPDATE task t INNER JOIN task_schema ts ON t.task_id = ts.id SET t.category_id = ts.category_id WHERE t.category_overridden = 0');
+        $this->addSql('ALTER TABLE task DROP category_overridden');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE task ADD category_overridden TINYINT(1) NOT NULL DEFAULT 0');
+    }
+}