feat: add MycroZine Generator shape with 5-phase workflow
Implements interactive 8-page zine creation tool:
- Phase 1: Ideation - chat UI for topic/content planning
- Phase 2: Drafts - generates 8 pages, spawns on canvas
- Phase 3: Feedback - approve/edit individual pages
- Phase 4: Finalizing - regenerate pages with feedback
- Phase 5: Complete - print layout download, template save
Features:
- Style selector (punk-zine, minimal, collage, retro, academic)
- Tone selector (rebellious, playful, informative, poetic)
- Chat-based ideation workflow
- Page grid with approval/feedback UI
- LocalStorage template persistence
- Punk green (#00ff00) theme
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>