Major version 0.9.0 release documenting the complete plugin infrastructure
implementation that enables JavaScript-first development.
**Added:**
- Plugin Infrastructure Foundation with RenderingEnginePlugin system
- TestDrive JSUI Plugin for independent JavaScript UI development
- CLI Engine Parameter (--engine) with intelligent defaults
- Automatic Asset Deployment to _markitect/plugins/ structure
- Complete JavaScript-Python separation with JSON configuration
**Changed:**
- BREAKING: Edit mode now defaults to testdrive-jsui plugin
- Asset management now automatic (no --ship-assets flag needed)
- JavaScript architecture fully modularized with clean separation
**Fixed:**
- JavaScript const redeclaration and loading conflicts resolved
- Plugin asset deployment and accessibility issues fixed
**Migration Guide:**
- Existing users automatically get new testdrive-jsui for edit mode
- Legacy behavior available with --engine standard
- Assets deploy automatically to output directories
This represents the largest architectural enhancement to date, enabling
independent JavaScript development while maintaining clean integration
with the Python markdown processing pipeline.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
