Update devtools to support multiple panels at once
- Changed panel state from single panel to Set<PanelStateKind>
- Updated PanelRouterContext with new methods: openPanel, closePanel, togglePanel, closeAllPanels
- Updated all components to use new panel management methods
- Menu items now toggle panels instead of replacing them
- Close buttons properly remove panels from the Set
- Command+K now toggles the panel selector
- Multiple dev-0 projects can now be open simultaneously
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
