- Wrap the data copy in DB::transaction (FULLTEXT ALTER stays outside)
- Switch to chunkById(500) so the migration scales
- Document down() as irreversible for non-default-locale translations
- Add test_existing_documents_data_is_copied_to_translations to cover
the data copy itself (the only previously-untested behavior)
- Drop unused Migrator import in DocumentMigrationTest
- Also restore title index in down() so up() can be re-run cleanly
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
documents.{title,content,rendered_html} move to document_translations
keyed by (document_id, locale). Existing rows are copied to a single
translation in config('app.locale'). documents gains default_locale.
Also guard the original FULLTEXT ALTER TABLE with a MySQL driver check
so that the SQLite test environment can run all migrations cleanly.
Yutaka Kurosaki