- Delete dev/CLAUDE.md, dev/blog-example.html, dev/contact-form-plan.md, dev/index.html, dev/optimization-guidelines.md, dev/plan.md - Update CLAUDE.md to include Design Specification section referencing dev/design.json - Modify dev/design.json with V7 Industrial Dark Mode system details - Update src/utils/git-commit.js to reflect new commit message format