Major changes:
- Shift from "OpenFang desktop client" to "independent AI Agent desktop app"
- Add decision principle: "Is this useful for ZCLAW? Does it affect ZCLAW?"
- Simplify project structure and tech stack sections
- Replace OpenClaw vs OpenFang comparison with unified backend approach
- Consolidate troubleshooting from scattered sections into organized FAQ
- Update Hands system documentation with 8 capabilities and status
- Stream
- Remove OpenFang CLI dependency from startup scripts
- OpenFang now bundled with Tauri and managed via gateway_start/gateway_status commands
- Add bootstrap screen in App.tsx to auto-start local gateway before UI loads
- Update Makefile: replace start-no-gateway with start-desktop-only
- Fix gateway config endpoints: use /api/config instead of /api/config/quick
- Add Playwright dependencies for future E2E testing
