- Update folder-structure.mdx and zh-CN version to reflect current Next.js 13+ App Router architecture
- Replace outdated simple desktop/mobile structure with actual complex structure
- Add documentation for (backend), [variants], @modal, and desktop route groups
- Include API architecture explanation with tRPC and REST endpoints
- Document platform organization and deployment targets
Fixes#9522🤖 Generated with [Claude Code](https://claude.ai/code)
Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com>
Co-authored-by: Arvin Xu <arvinxx@users.noreply.github.com>