Notebook Video v1.0.1

CI hardening release: validates Python without generating cache files, installs FFmpeg/FFprobe explicitly on GitHub-hosted runners, upgrades checkout/setup-node to pinned v7 commits, and keeps style-locked Remotion upgrades behind rendered review.

What's Changed

• Fix CI validation and dependency policy by @hyt315 in #4

New Contributors

• @hyt315 made their first contribution in #4

Full Changelog: v1.0.0...v1.0.1