Consolidate the repository into clearer apps, tools, and layered docs areas so contributors can navigate and maintain it more reliably. Align validation, metadata sync, and CI around the same canonical workflow to reduce drift across local checks and GitHub Actions.
* Update print statement from 'Hello' to 'Goodbye'
* Remove outdated skill descriptions from SEC_SKILLS.md
Removed several sections related to analytics tracking, SEO auditing, Slack bot building, and other skills from SEC_SKILLS.md.
