- Fix 'No module named app' error by adding project root to Python path
- Ensure consistent database path between app and migrations
- Update database configuration to work in both development and deployment
- Set appropriate SQLite dialect configuration with render_as_batch
- Update documentation with additional migration instructions
- Fix imports order to comply with linting standards
Implemented a complete FastAPI backend with:
- Project structure with FastAPI and SQLAlchemy
- SQLite database with proper configuration
- Alembic for database migrations
- Generic Item resource with CRUD operations
- REST API endpoints with proper validation
- Health check endpoint
- Documentation and setup instructions
