Add three key documents to guide the project restructure:
- REFACTORING_MASTER_PLAN.md: Complete refactoring roadmap with 6 stages
- REFACTORING_CHECKLIST.md: Detailed task checklist for tracking progress
- REFACTORING_REFERENCE.md: Technical reference and implementation guide
This refactoring aims to modernize the codebase with React Query,
react-hook-form, zod validation, and shadcn/ui components while
maintaining the current Tailwind CSS 4.x stack.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
