- Add Testing Hub (Admin Dashboard) section to testing guide - Document features: collection, running tests, statistics - Document API endpoints and background execution - Update sidebar documentation for new structure: - Add Product Catalog section - Add Platform Health section (Testing Hub, Code Quality, Background Tasks) - Update Settings to collapsible section - Update page-to-section mappings 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>