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.
- Added `date_added` field to all skills in frontmatter.
- Updated Home page to display skill addition date alongside risk level.
- Enhanced Skill Detail page to show date added in a badge format.
- Created scripts for managing skill dates, including adding missing dates and generating reports.
- Updated validators to enforce date format compliance.
- Added comprehensive documentation on date tracking implementation and usage.
- Introduced a new skill template including the `date_added` field.
