- setup.sh: auto-downloads Node.js + npm deps + runtime from China mirrors - setup.bat: same for Windows, guides to install Node.js if missing - Both set Electron mirror to npmmirror.com for China users - Updated README with new setup instructions
- Reorganize project: clean structure (portable/ u-claw-app/ usb-scripts/ website/) - Move docs into website/, rename uclaw-scripts to usb-scripts - Add u-claw-app/ Electron desktop source code - Add portable/setup.sh: one-command dev environment setup - Add portable/SkillHub.html: skill marketplace page - Update README: dev guide, contribution workflow, project structure - Update .gitignore: exclude runtime binaries and build artifacts - Expand China install guide: npm mirrors, detailed onboard wizard
