- Add content API client with HTTP and mock implementations
- Implement HTML content injection with database content replacement
- Create enhance command for build-time content injection
- Integrate enhancement with servedev for live development workflow
- Add editor asset injection and serving (/_insertr/ endpoints)
- Support on-the-fly HTML enhancement during development
- Enable complete 'Tailwind of CMS' workflow: parse → inject → serve
- Implement Go-based CLI for build-time HTML enhancement
- Add container expansion: div.insertr auto-expands to viable children
- Create servedev command with live development workflow
- Add Air configuration for automatic rebuilds and serving
- Enable transition from runtime JS to build-time enhancement approach
