Introduce PostgresAdapter for dict-based row CRUD via psycopg3, including config, lazy exports, unit/integration tests with testcontainers, and an example UserTableRepository.
Co-authored-by: Cursor <[email protected]>
Introduce typed config objects, optional adapter injection, and .env loading to simplify testing while preserving env-based defaults for production usage.
Co-authored-by: Cursor <[email protected]>