# migrations ## Purpose Doctrine schema migrations (doctrine-migrations-bundle). Each versioned class applies (`up`) and reverts (`down`) schema changes. ## Key Files | File | Description | |------|-------------| | `Version20260308133356.php` | Initial schema migration | | `Version20260308143046.php` | Follow-up schema migration | ## For AI Agents ### Working In This Directory - **Do not hand-write migrations.** After changing an entity in `src/Entity/`, run `php bin/console make:migration` and review the generated diff. - Apply with `php bin/console doctrine:migrations:migrate`. - Never edit an already-applied migration; create a new one instead. ### Testing Requirements - Verify `up` then `down` both run cleanly on a scratch database before merging. ## Dependencies ### Internal - Generated from `src/Entity/` mappings. ### External - `doctrine/doctrine-migrations-bundle`, Doctrine DBAL 3.