- Add dotfiles repo as submodule in assets/dotfiles/
- Rewrite home.nix with direct file references instead of stow service
- Remove old custom dotfiles.nix service (replaced by home-manager)
- Clean up services/default.nix import
- Add headless openclaw node systemd service for host execution
- Migrate from nix to lix package manager
- Permit openclaw-2026.3.12 (insecure package warning)
- Use ai-worker user for node service
- Started OpenCode service and verified it's running
- Tested Context7 web search functionality
- Tested DuckDuckGo web search functionality
- Documented web search integration in open_code_server.nix
- Updated ROADMAP and STATE with completion status
- Phase 4 complete, ready for Phase 5: TAK Server Integration