Package exports:
- Fix tinytorch/__init__.py to export all required components for milestones
- Add Dense as alias for Linear for compatibility
- Add loss functions (MSELoss, CrossEntropyLoss, BinaryCrossEntropyLoss)
- Export spatial operations, data loaders, and transformer components
Test infrastructure:
- Create tests/conftest.py to handle path setup
- Create tests/test_utils.py with shared test utilities
- Rename test_progressive_integration.py files to include module number
- Fix syntax errors in test files (spaces in class names)
- Remove stale test file referencing non-existent modules
Documentation:
- Update README.md with correct milestone file names
- Fix milestone requirements to match actual module dependencies
Export system:
- Run tito export --all to regenerate package from source modules
- Ensure all 20 modules are properly exported
