- Introduced a new Alembic migration to add a 'theme' column to the 'presentations' table.
- Updated migration scripts to handle unversioned databases more gracefully.
- Added a script for programmatically deleting local SQLite database files and running migrations.
- Enhanced database initialization logic to conditionally run migrations based on environment settings.
- Introduced a helper function `_to_sync_database_url` to standardize the conversion of async database URLs to sync URLs in `env.py` and `migrations.py`.
- Added `_ensure_sqlite_parent_dir` function in `db_utils.py` to create the parent directory for SQLite databases if it doesn't exist, ensuring compatibility with Windows paths.
- Updated the `get_database_url_and_connect_args` function to call `_ensure_sqlite_parent_dir` before processing the database URL.
- Simplified the `sync_export_runtime.js` script by removing the build step and directly using committed runtime artifacts, ensuring a smoother export process.
