- Create comprehensive .gitignore with Python, venv, DB exclusions - Add test_virtual_env_setup.py with 6 unit tests - Verify Python 3.13.5 compatibility (>= 3.11 required) - All tests passing (6/6) Refs: T02
- Create src/openrouter_monitor/ package structure - Create models/, routers/, services/, utils/ subpackages - Create tests/unit/ and tests/integration/ structure - Create alembic/, docs/, scripts/ directories - Add test_project_structure.py with 13 unit tests - All tests passing (13/13) Refs: T01