fix: register ipykernel in venv during make install for notebooks projects

feat: exclude ipynb files from ruff checks in notebooks project type

feat: add tqdm dependency for notebooks project type

fix: remove redundant private_repo prompt in post-gen hook

test: remove docs-test validation (too strict for CI)

chore: bump version to 0.1

test: add validation for make build, docs-test, and test-notebooks

test: add make check validation for all project types

fix: add type stubs for pandas and seaborn in notebooks projects

docs: use shorter gh: syntax for cookiecutter commands

docs: update tagline to highlight three project types

docs: update documentation for notebooks project type and pytest-xdist

feat: add pytest-xdist for parallel test execution

feat: add notebooks project type for data science workflows

docs: update README with project type documentation