- Add Beyond 33 tab with all 29 concept pages organized by category
- Add What's Next section linking to Beyond 33 from main concepts
- Add Beyond 33 overview page explaining the extended curriculum
- Update scope-and-closures to link to hoisting deep dive
- Update gitignore for project configuration
- Add fact-check skill for verifying technical accuracy of concept pages
- Add seo-review skill for SEO audits with 27-point scoring system
- Move skills to both .claude/skills and .opencode/skill for compatibility
- Rename opencode.json to opencode.jsonc with skill configuration
- Update .gitignore to track .opencode/skill while ignoring local files
- Update CLAUDE.md with documentation for all three skills
- Add Custom Skills section to CLAUDE.md with write-concept skill info
- Update repository structure to reflect .opencode skill location
- Document SEO guidelines, page structure, and quality checklists
- Update .gitignore to ignore .opencode/ folder instead of .claude/skills/
