- Updated `.env` and `.env.test` files to include PostgreSQL connection settings and Redis configuration.
- Migrated database from SQLite to PostgreSQL, updating relevant queries and connection logic.
- Enhanced error handling and logging throughout the application.
- Added new test utilities for PostgreSQL integration and updated user model methods.
- Introduced new routes for user authentication and form management, ensuring compatibility with the new database structure.
- Created login and registration views in EJS for user interaction.
