doc-update

Update and clean up project documentation files (primarily .ai/features/, but also README.md, PROGRESS_TRACKER.md, CLAUDE.md, and other .md files). Use when user requests documentation cleanup, organization, or updates for any feature, module, or project documentation (e.g., 'update photo viewer docs', 'clean up README', 'organize documentation'). Removes code snippets, outdated details, and redundant information while preserving essential architectural decisions and technical context.

// tip: Run this command in your terminal to install the skill